LIMITED WARRANTY OF CONTENTS TABLE of America, Inc. warrants to the original consumer purchaser that the game disc or cartridge shall be free from defects in material and workmanship for a period of 90-days from the original date of purchase. If a defect covered by this limited warranty occurs during this 90-day warranty period, the defective game disc or cartridge will be replaced free of charge. This limited warranty does not apply if the defects have been caused by negligence, accident, unreasonable use, modification, tampering, or any other causes not related to defective materials or manufacturing workmanship. This limited warranty does not apply to used software or to software acquired through private transactions between individuals or purchased from online auction sites. Please retain the original, or a photocopy, of your dated sales receipt to establish the date of purchase for in-warranty replacement. For replacement, return the product, with its original packaging and receipt, to the retailer from which the software was originally purchased. In the event that you cannot obtain a replacement from the retailer, please contact Sega to obtain support. NetBSD The communications function of this product includes software developed by the NetBSD Foundation, Inc. and its contributors. For a complete list of contributors please see http://www.scei.co.jp/psp-license/pspnet.txt

Recording surface

Ejecting the disc

Storing the disc

GETTING STARTED...... 2 STARTING UP...... 3 “PlayStation”, “PS” Family logo, and “PSP” are registered trademarks and “UMD” is trademark of Sony Computer Entertainment Inc. “Memory Stick Duo” and “Memory Stick PRO Duo” are CONTROLS...... 4 trademarks of Sony Corporation. MAIN MENU...... 5 OPTIONS...... 6 PROLOGUE...... 7 CHARACTERS...... 8 THE GAME SCREEN...... 10 GAME MODES...... 11 RACING ESSENTIALS...... 14 CREDITS...... 18 ULUS 10195  STARTING UP  buttons POWER indicator HOLD indicator Right speaker button START SELECT button Sound button Display button

-

R button

buttons POWER indicator HOLD indicator Right speaker button START SELECT button Sound button Display button Sonic™

R button Note: . You can also choose You . ortable) system ortable) LCD screen P ® LCD screen Volume Sonic™ Rivals tation Volume S Ad Hoc Mode is a wireless feature that allows lay L button P L button ( supports Ad Hoc Mode. Please see the Multiplayer supports Directional buttons MEMORY STICK DUO™ access indicator WLAN access indicator Analog stick Strap holder Left speaker HOME button STARTING UP STARTING Directional buttons MEMORY STICK DUO™ access indicator WLAN access indicator Analog stick Strap holder Left speaker HOME button STARTING UP STARTING to manually load saved data at the Change Profile Menu by to manually load saved data at the Change Profile selecting LOAD PROFILE. Wireless (WLAN) Features you to Software titles that support Wi-Fi functionality allow systems, (PlayStation Portable) communicate with other PSP via download data and compete against other players You connection to a wireless local area network (WLAN). to a can adjust the network settings to allow connection two WLAN There are wireless local area network (WLAN). Ad hoc and Infrastructure Mode. modes: Rivals section of this manual for further details. Ad Hoc Mode: systems (PlayStation Portable) two or more individual PSP to communicate directly with each other. PSP® configuration Saving Profiles and Settings are automatically saved after profile and settings Your and when you return to the changing settings and options Main Menu. Auto Save will appear on screen indicat As you progress, a message this ing your profile and settings are being saved. While the remove message is on screen, DO NOT or turn Memory Stick Duo™ or Memory Stick PRO Duo™ your handheld. off Loading Saved Game Settings loaded saved game settings will automatically be Your when first booting up OPEN latch

button Sonic™ s OPEN latch POWER/HOLD switch DC OUT connectors USB POWER/HOLD switch POWER/HOLD connector DC OUT connectors USB Disc cover buttons connector IR port Disc cover buttons GETTING STARTED GETTING Do not eject a UMD™ while it is playing.

disc with the label facing away from the system, A Memory Stick Duo™ or Memory Stick PRO Duo™ Memory Stick Duo™ or Memory A IR port

Memory Stick Duo containing previously saved games. Memory Stick Duo containing previously saved games. Note: “Save with at least 256 KB of free space is required for a Game” file. To save game settings and progress, insert a Memory save game settings To can You Stick Duo into the memory stick slot of your PSP. or any load saved game data from the same memory stick Memory Stick Duo™ Memory Keep Memory Stick Duo media out of reach Warning! by of small children, as the media could be swallowed accident. instructions and refer to this manual for information on instructions and refer to this manual for information using the software. NOTICE: slide until fully inserted and close the disc cover. From slide until fully inserted and close the disc cover. the Game icon home menu, select the PSP® system’s for the software is thumbnail A and then the UMD icon. displayed. Select the thumbnail and press the the system. Turn the system on. The power indicator lights The the system on. Turn the system. menu is displayed. Press the up in green and the home the INSERT cover. OPEN latch to open the disc Rivals Set up your PSP® (PlayStation®Portable) system Set up your PSP® (PlayStation®Portable) in the manual supplied with according to the instructions FRONT VIEW RIGHT SIDE VIEW SIDE RIGHT of the PSP® to start the software. Follow the on-screen GETTING STARTED GETTING

GETTING STARTED  CONTROLS MAIN MENU menu controls Main Menu Press the START or s button at the Title Screen to go Control Action Select Menu Item directional buttons to the Main Menu. At the Main Menu, use the directional Change setting directional buttons Z / X buttons C and V to highlight a selection and press the Confirm / Accept selection s button s button to confirm your choice. Previous screen a button Card collection summary d button Cycle through Card Pages N or B Pause / Start game START Change Outfit d button (at the Character Select Screen) racing controls

Control Action Move Character directional buttons Z / X or analog stick Duck directional button V Look up directional button C Jump s button Jump off Grind directional button V + s button Homing Attack s button then s button (while in air.) Single-Player directional button V (hold) + s button (tap) then Spin Dash Choose from a variety of Sonic™ Rivals single-player release game modes: Story, Challenge, and Cup Circuit. For Attack a button more information, see Single Player Mode, pg. 11. Use Power-Up d button Air Boost s button (when icon appears on-screen) Speed Boost a button (when icon appears on-screen) wireless play Pause / Start game START Challenge your friends and rivals using the PSP (PlayStation Portable) system’s wireless capabili- Note: Boost moves are context-sensitive maneuvers off ties. Go head-to-head against your buddy through Ad of specific Boost props. To activate the most effective Hoc Mode for a single race or select from a series of Boost move, you must press the corresponding button Cup Circuit challenges. When you’re done racing, select that appears on-screen. For more information on Boost- Card Trade, to swap unlocked Trading Cards. For more ing, see Boosts, pg. 16. information, see Wireless Play, pg. 12. View Collection View the Trading Cards you’ve unlocked, traded and col- lected. For more information, see Card Collection, pg. 17. Options Change various game settings.

  OPTIONS PROLOGUE Options A mysterious land mass called “Onyx Island” suddenly appears in the south seas as if out of nowhere... The Use the directional buttons C and V to highlight and option super-fast blue hedgehog, Sonic, and his best buddy and press the s button to confirm your choice, or press the Tails head off to search for clues as to what might have directional buttons Z and X to toggle / adjust the choices. transpired. Press the a button to return to the Main Menu. “This has gotta be another one of Eggman’s schemes!” Sonic’s hunch proves to be correct. As soon as they arrive at the island, they spot Dr. Eggman already waiting for them. As Sonic confronts Eggman, he triumphantly holds up a card. Sonic and Tails are shocked to see that the card bears a picture of their friend, Amy Rose. “Do you know what this is, Sonic?” "I’ve sealed that little brat away inside this card!” “Ha! Do you really think we’ll believe that?” While Sonic simply brushes off Eggman’s supposedly ridiculous story, the more scientifically-minded Tails takes Game Summary things more seriously. View the current progress and statistics for your saved progress, including high score, best times, Cards won, “It might not be all that easy to believe, but it could be possible for matter to be broken down at the atomic level and more. and stored as digital card media...” Skins As Tails’ quavering voice reaches Sonic’s ears, there is a Select an unlocked Skin for your Main Menu. sudden blinding flash, and when it fades, Tails is gone. In Eggman’s hand is a new card bearing Tails’ image. Sonic volume options stares in panicked disbelief. Then, who should appear but Adjust the Music and SFX volume levels. Knuckles, Sonic’s more “physically assertive” friend. “Eggman! You’re behind the disappearance of the Mas- credits ter Emerald, aren’t you?!” Knuckles says. View the game's credits. “Indeed!” Change Profile Eggman smiles, drawing from his bag another card, Manage your player Profile. emblazoned with the Master Emerald.

Control Action “Soon, everything in this world will be nothing more than Load Profile Manually load your Profile. another entry in my lovely card collection! If you think you Save Profile Manually save your Profile. can take your precious things back, then just you try it! Clear Profile Delete your Profile and create a new one. Ha ha ha ha ha!” Autosave Toggle the Auto Save feature ON/OFF. After issuing his challenge, Eggman takes off and flies Note: Once a Profile has been deleted it is lost and can no away. longer be recovered. Sonic and Knuckles vow to take him up on that challenge Clear Data in order to take back what is in those cards. Permanently Delete your save data. “Sorry, Sonic, but this concerns the Master Emerald. This time, I’M going in first!” Note: Once your save data has been deleted it is lost and can no longer be recovered. “Okay, Knuckles! Let’s just see which one of us gets there first!” At the same time, the mysterious black hedgehog, Shad- ow, arrives on Onyx Island, along with Silver, a guardian from the future, both seeking Eggman’s cards. Who will be the one to get the cards back from Eggman first? What is Eggman’s true purpose in baiting these four  to compete?  CHARACTERS  - - edgehog H edgehog H

hadow ilver ilver the hadow the

s s time. Possessing the power to use the Chaos Emer to alds to perform “Chaos Control,” he has the ability Eggman manipulate time and space. Summoned by Dr. via a cryptic transmission asking for his aid, Shadow a race to find encounters something strange and now it’s Eggman and uncover the truth! S mysterious young silver hedgehog, Silver is equipped A with psychic powers that allow him to propel items only thing The through the air with the power of his mind! Silver really knows is that he is searching for someone… why? Shrouded in but for whom, and more importantly, Eggman to find Silver begins to chase after Dr. mystery, the clues that will unlock his quest. S Shadow was created as the ultimate life form by Profes of his sor Gerald Robotnik, the greatest scientific genius

SONIC

chidna E edgehog H

nuckles nuckles the

onic the k into a Card by Dr. Eggman. Now this renowned echidna into a Card by Dr. the must race to find the Master Emerald and take down evil mastermind behind this insidious plot. k The guardian of the Master Emerald, Knuckles is as the Master Emerald tough as they come. Unfortunately, turned has been stolen right out from under his nose and Tails and Amy, have been mysteriously turned into Cards. Amy, and Tails Eggman the nefarious Dr. a race to take down it’s Now’s once and for all and free his friends! S This hedgehog is the fastest living being in the universe. Eggman to save the world numerous defeated Dr. He’s that his best friends, discovered times, but this time he’s

CHARACTERS  THE GAME SCREEN GAME MODES Single-Player 2 Choose from Story, Challenge and Cup Circuit Modes. 1 story In Story Mode, 3 choose a favorite Sonic™ Rivals 6 character and race through the adventure to find out why Sonic, 7 Knuckles, Shadow, 4 and Silver are racing against each other to get at Dr. Eggman. 5 Challenge 1. Rings In Challenge Mode, Indicates the number of Rings you’ve collected. Collect- choose a character, ing Rings increases your score and also prevents you rival, and stage, then from having to respawn when you are injured. For more compete in a single information, see Rings, pg. 15. race while attempting to complete specific 2. Time challenges to unlock Your current race time. rewards. 3. Boost Opportunity Note: Challenges differ depending on the Difficulty Level Environmental objects that allow you to perform context- selected. sensitive aerial and speed Boost maneuvers. To activate a Boost, press either the s (Air Boost) or the a (Speed Cup Circuit Boost) button while on the Boost Object. Select a Cup and compete in a series Note: Sometimes one Boost is better than the other of races consisting of — look for icons on screen that give you tips!” best two out of three 4. Power-up tracks to see who is Pick up and use Power-Ups to gain the upper hand. For the fastest racer. In more information, see Power-Ups, pg. 17. order to successfully complete a circuit, you must win more races than your 5. Distance meter rival. This displays the distance and proximity between you and your rival racer, as well as the proximity to the finish line. 6. Rival Arrow If your rival is off-screen, the Rival Arrow appears to show you his general direction and location. 7. Position This displays your position in the race. Come in first to win!

10 11 GAME MODES 13

button to search button to search s button to start the race. - s -

tion, see Card Collection, pg. 17. creating a game a creating a and host create To select game, and then CREATE a Wireless choose Play option (Single and Race, Cup Circuit Next, Trade). Card use the directional outfit (optional), and Stage a character, buttons to select want to wager whether or not you / Cup, then choose press the you’re ready, Cards. When Once a player has joined your for other nearby players. game, press the WAGER CARDS In Wireless Play Mode, you can choose to wager your unlocked Cards against your op ponent for a chance The to win his cards. host can set this When a wager is placed, option when creating a game. to keep the Card the other if you win the race, you get lose, your opponent gets to player has wagered. If you keep yours! Trade Card your unlocked Cards with your friends via the Trade Ad Hoc Mode. (PlayStation Portable) system’s PSP For more informa

to select a game in progress from the to select a game in progress V button to confirm your choice. Once you’ve and s C In order to play a game through the When attempting to connect wirelessly to another to connect wirelessly When attempting button to cancel the connection and return to the the connection and return button to cancel PSP (PlayStation Portable) system’s Ad Hoc Mode, you (PlayStation Portable) system’s PSP must make sure the WLAN switch is switched on. chosen a game to join, select your character and outfit, chosen a game to join, select your character and outfit, then wager a Card (if this option was chosen by the The race will then begin. Host). Note: JOIN to open the Join Game Menu. Press the directional JOIN to open the Join Game buttons right side of the screen and game host window on the press the Joining a Game then select join a game, choose Wireless Play and To PSP (PlayStation Portable) system, you can press the system, you can press (PlayStation Portable) PSP a Multiplayer Menu. PSP (PlayStation Portable) system’s wireless capabilities. wireless capabilities. system’s Portable) (PlayStation PSP and Ad Hoc Mode friend through to a nearby Connect Modes. Trade and Card Cup Circuit, from Single, choose Note: wireless play wireless the using a friend against Play

GAME MODES 12 RACING ESSENTIALS 15 button again button again Sonic™ s buton, and then press the buton, and then s button for a shove, or jump above them by shove, or jump above them button for a a , making sure you have at least one ring is critical , making sure you have at attack of your in front to stay enough isn’t Boosting Sometimes some old engage in to shove, push comes rival. When knock your temporarily Attacking will attacking! fashioned them to them, causing or stun to the ground opponent or jump to allowing you to get ahead lose Rings while your rival and attack, get right behind To new heights. press the pressing the for a leapfrog! rings the ultimate goal in Although finishing first is Rivals to staying alive and avoiding respawn delays. Large collection of Rings provides score bonuses and special awards. - - Amid the majestic columns and Amid the majestic columns Icy crystals, snow banks, slippery ' Not much is known about Dr. Eggman’s Eggman’s Not much is known about Dr. Death Yard is a dry, deserted wasteland filled is a dry, Yard Death Don’t let the lush scenery, grassy platforms, grassy platforms, lush scenery, Don’t let the fashion, fashion, This theme park gone wild is comprised of a This theme Sonic The The Sonic * Except for Zone 3. Meteor Base: but top-secret base hidden deep within a meteor shower, molten lava and filled with hot, bubbling you can bet it’s fiercest robot goons. some of Eggman’s the game. These tracks have so many dips, twists, turns, These tracks have so many the game. what and loops, that dizzy doesn’t even begin to describe line. your racer will be feeling when he reaches the finish barrel down the track at death defying speeds. Yard: Death and with razor sharp spike beds, corkscrews, gaping pits, in Boost hoops that must be navigated correctly to stay Crystal Mountain: tracks, and freezing waters comprise this winter won the derland. If the blizzards don’t slow your racer down, to brittle ice barriers will. Make sure to hop in the bobsled strongman platform to propel your character through the strongman platform to propel one speed boost ahead of the atmosphere while staying competition. Sky Park: twists, turns, complete with thrill-a-minute rollercoaster, teddy bears designed to loops, drops, and even stuffed springs, dash panels, and the slow your racer down. Use Colosseum Highway: littered with pitfalls, traps, and pillars this perilous track is provide corkscrews and Boost hoops Twisting steep hills. experience. a non-stop white-knuckle and cascading waterfalls fool you. Forest Falls is brim waterfalls fool you. Forest and cascading large loops, offs, including steep drop ming with danger, robot minions. and plenty of Eggman’s six Zones, with three six Zones, with Zone*. Acts for each Forest Falls: Hedgehog Rivals Sonic™ are played out stages Acts. in Zones and of There are a total zones and acts and zones In typical

RACING ESSENTIALS 14 RACING ESSENTIALS RACING ESSENTIALS boosts power-ups Boosting can give you extra speed, distance, and/or air Pick up Power-Ups as you by interacting with special environmental objects — such speed across the track and as logs, rocks, poles, and more — and allow you to gain use them to temporarily the upper hand on your rival. Oftentimes, correctly per- stop your rival in his tracks. forming a Boost leads to special Power-Ups or shortcuts. Power-Ups can be found When a Boost opportunity presents itself, a context-sensi- hovering in the air. To pick tive button icon will appear over the environmental object. up a Power-Up, simply run over it. In order to successfully pull off a Boost maneuver, you must quickly press a Boost button before the opportunity Each Power-Up has two uses: Offensive and Defensive. is lost. There are two types of Boosts: Air and Speed, and If you are ahead of your rival, the Power-Up will be used the context-sensitive button will help tell you which is the defensively. If you are behind your rival, it will be used best one to use. offensively. Offensive Power-Ups are generally used as projectile weapons that shoot down the track until they Note: You are not required to match the context-sensitive hit your rival or an obstruction. Defensive Power-Ups are button displayed for each Boost — it just gives tips! generally used as dropped weapons that sit on the track until your rival runs into them. Air Boost: When the s but- ton icon appears over an ob- Power-up Offensive Effect Defensive Effect Zones ject, pressing the s button Fire Rolling Fireball Fire Shield All at the precise time allows Ice Snow Blast Ice Cube All Mine Floating Homing Mine Stationary Mine 3+ your character to vertically Illusion Confusion Decoy Zapper Rings 4+ Boost into the air and reach Wind Shoot Tornado Drop Tornado 3+ platforms and areas that are otherwise unattainable. Ring Magnet Ring Magnet Ring Magnet 3+ Star Signature Move Signature Move All Speed Boost: When the a button icon appears over Each racer also has a Signature Move Power-Up, which is represented by a Star icon. Sonic has “Sonic Boom,” an object, pressing the a button at the precise time Knuckles has “Hammer Punch,” Shadow has “Chaos allows your character to Control” and Silver has “Psychic Control.” horizontally Boost along the card collection track for a temporary burst of speed. Speed Boosts can give you the chance to pass, stay ahead, or catch up to Collect Trading Cards by winning races, getting high your rival. scores, and trading and wagering them against your friends via the PSP (PlayStation Portable) system’s Ad Note: Some Boosts opportunities will have a “?” icon Hoc Mode. Choose VIEW over them. When this icon appears, you can choose COLLECTION from the Main either Boost without worry. Menu to view how many Cards you’ve won and collected. bosses Use the analog stick or the Z After every two Acts*, Sonic directional buttons and X and his rivals will have to to cycle through the Card s face one of Eggman’s categories and press the mechanical bosses. To fell button to select a category. these huge beasts, you must Once a category has been locate their weak spots and attack them multiple times. selected, use the analog stick or the directional buttons Z X Of course, your rival will be attempting the same thing. and to cycle through the cards and view them. To N B The character to get the predetermined number of hits switch between pages, press the and buttons. d first, wins! Pressing the button will pull up a Summary Window, which displays a breakdown of the Cards you’ve already a * Except for Zone 3. collected. Press the button to exit and return to the previous menu. 16 17 CREDITS CREDITS sega of backbone entertainment america Producer Effects and Animation Project Director Production Specialist Taylor Miller Coordinator Daniel Lam Takashi Iizuka Heather Lucchetti Associate Producer Project Associate Graphic Designer Zoe Curnoe Technical Artist Eric Ronay Producer Marco Garcia Assistant Producer Keith Palmer QA Management Jarett Metcalfe Artists Aaron Parrott Art Supervisors Deni Skeens Lead Engineer Beth Dewhirst Kazuyuki Hoshino Josh Morton Peter Phillips Hiroshi Nishiyama Brent Kirby Tester(s) Technical Manager Erik Larsson Sound Supervisor Shawn Dobbins Greg Wilson John Mah Jun Senoue (Project Lead) Kate Freeman Ben Seto Engineers Concept Design & Kim Sawula (Assistant Lead) Aaron Koenig Scenario Shane Holmes Amber Crouch Brian Provinciano Takashi Iizuka Terence Destouet Chuck Chow Lead Animator Character Artwork Emily Sheafe Clinton Blackmore Karen Matskiw-Rodriguez Devin Murnane Kazuyuki Hoshino Animators Francois Laberge Off Base Chun Sin Loh CEO Productions Jim Lao Naoya Tsurumi Duncan Lin Manual Documentation Kelvin Tang President Greg Off Luke Huang Front End Artist Simon Jeffery Melina Eby Mark Pearce Option-Shift Richard Orth Studio Quality Assurance VP of Product Design Erwin Tang Development Tom “MrLuigi” McGarry Manual Design Marcel Barker Dave Cobb Tim Lindquist Pete Thompson Music Composer Chris Rezanson VP of Sales [a.s.h] Lead Designer Sue Hughes-Taigen Tyler Sigman Sound Effects Design OMNI Interactive Audio Associate Producer Senior Designer Alistair Hirst Jason Kuo Derek Tam Robert Ridihalgh VP of Marketing Lead Level Designer Daylon Walden Scott Steinberg Eric Emery Tom Smurdon Chase Combs Director of Marketing Designers Lisa Elliott Cobb Don Mesa Cory Hasselbach Product Marketing Josh Zisserson Senior Producer Manager Kyle Mohammed Ivan Allan Michael K. Donovan Yosuke Moriya Studio Head Nick Letizia Joe Bonar Public Relations Richard Knight One PR Studio Lead Artist Creative Services Chris Bourassa Manager Jen Groeling Lead Level Artist Mabel Chan

18 19 . SEGA America, of Inc. SEGA Street, Suite 650, 650 Townsend San Francisco, 94103 CA is SEGA registered in the U.S. Patent and Office. Trademark SEGA, the logo SEGA and Sonic Rivals are either registered trademarks or trademarks of Corporation. SEGA © Corporation, All SEGA 2006. Rights Reserved. SEGA and the logo SEGA are registered trademarks All of Corporation. other SEGA trademarks are owned by their respective owners. establish the date of purchase for in-warranty replacement. For replacement, return the product, with its original packaging and receipt, software was originally purchased. In to the event that you cannot obtain a replacement the retailer from which the support please contact Sega to obtain from the retailer, NetBSD The communications function of this For Inc. please a and product list its of complete Foundation, contributors. NetBSD contributors includes software developed by the see http://www.scei.co.jp/psp-license/pspnet.txt LIMITED WARRANTY LIMITED SEGA of America, Inc. warrants to the original disc consumer or cartridge purchaser shall be free that from defects in the material and game workmanship for a period of 90-days from the original date warranty of purchase. occurs If during a this defect 90-day covered cartridge will by warranty be replaced this free period,of limited charge. This the limited warranty does defectivenot apply if the game defects have been disc caused by or negligence, accident, unreasonable use, modification, tampering, or any other causes not related to defective materials workmanship. This or limited manufacturing warranty does not apply to used software or acquired to through private software transactions between individuals or purchased from online auction sites. Please retain the original, or a of photocopy, your dated sales receipt to Recording surface Ejecting the disc the disc Storing

Beejey Enriquez Mina Provonsha Takeuchi Aya Sonic Committee Questar Welsh Thanks Special Team Design The Reaper and Core Suzy Goldish Paul Grassini Mike Knoblauch Alon Namdar Julie Rath Production Coordinator Salvatore Oppedisano Recording Engineers Kathleen Delaney Directors Voice Christopher Collet Dan Green Pete Capella Mike Pollock Palant Amy Lisa Ortiz 4 Kids Production, Inc.4 Kids Production, Cast Voice Jason Griffith Ryan Slemko Business Development Jim Sink George Phillips George Director Creative Ward Trent Art Director backbone entertainmentbackbone (cont.) Director Technical ”, “PS” Family logo, and “PSP” are registered trademarks and “UMD” is trademark of

ULUS 10195

trademarks of Sony Corporation. “PlayStation Sony Computer Entertainment Inc. “Memory Stick Duo” and “Memory Stick PRO Duo” are

CREDITS 20