Bonus characters
Successfully complete the Hero storyline to unlock Shadow The Hedgehog, Rouge The Bat, and Cream The Rabbit.
Successfully complete the Babylon storyline to unlock Eggman.
Complete Storm's, Wave's, and Jet's missions to unlock AiAi, Ulala, and NiGHTS.
To play as Super Sonic you must get all the Gold Emblems in Mission mode. Then, a Chaos Emerald will be selectable as one of Sonic's Extreme Gears. Choose it, and Super Sonic will appear. Super Sonic goes ridiculously fast, and has all three types (Speed, Power, Flight). However, he has some disadvantages. For example, you will lose rings rather than air. This means that sharp turns and boosting/attacking will make you lose rings. Once you have lost all your rings, you will revert back to normal Sonic. To change back, simply acquire one or more rings.
Complete 100 races to unlock E-10000G. Alternately, accumulate over twenty hours of game time.
Accumulate over fifty hours of game time to unlock E-10000R.
Bonus vehicles and gear
Successfully complete the Hero storyline to unlock Shadow's Darkness jet shoes, Rouge's Temptation board, and Cream's Smile board.
Successfully complete the Babylon storyline to unlock Sonic's Blue Star II board, Eggman's Egg-Rider scooter, and the Magic Carpet. Note: When you get the Magic Carpet the description reads "The ancient legendary gear!". However, it also has the ability to make anyone who rides it have the flying skill.
Complete all of Jet's, Wave's and Storm's missions to unlock the Hang-On gear, Opa Opa gear, Super Hang-On gear, and The Crazy gear.
Play Storm's missions to find the following boards and repair manuals. Complete Metal City mission 5 to unlock the Fastest Board. Complete Digital Dimension mission 5 to unlock the Fastest Repair Manual. Get the Legend Board in Babylon Garden mission 5 on a hidden rail behind a tower after the jet. Complete Sand Ruins mission 5 to unlock the Legend Repair Manual. Complete Egg Factory mission 5 to unlock the Powerful Gear Board. The Powerful Gear Repair Manual can be found between two fly rings in Sega Carnival mission 5. The Turbo Star Board can be found between two fly rings in the centipede part of Green Cave mission 5. The Turbo Star Repair Manual can be found on a rail over the river in Splash Canyon mission 5.
Bonus tracks
Win the Heroes Cup with a Gold Emblem to unlock the Sega Carnival track.
Win the Babylon Cup with a Gold Emblem to unlock the Sega Illusion track.
Bonus modes
Successfully complete the Hero storyline to unlock Mission mode, Babylon storyline, and the ability to buy skates at the shop.
Bonus missions
Successfully complete the Hero storyline to unlock Storm's missions.
Successfully complete Red Canyon or Night Chase in the Babylon story line to unlock Wave's missions.
Successfully complete Wave's and Storm's missions (including Sega Carnival and Sega Illusion tracks) to unlock Jet's missions.
Bonus music
Complete the indicated part to unlock the corresponding music track in the "Audio Room" menu.
Catch Me If You Can: Complete the Babylon storyline.
Theme of Babylon Garden: Complete Hero storyline.
Theme of Digital Dimension: Complete Babylon storyline.
Theme of Sega Carnival: Unlock the Sega Carnival track.
Random character selection
Press [R] at the character selection screen.
Defeating Babylonian God (Genie)
To defeat this giant, play as Sonic. He has three lives. To catch him, get a good head start. He is very quick. Do not make a mistake or it will take awhile to catch up. When you start, you must catch up to him using the turbulence streams and the grind rails. It helps to make quick work of him. Also, use the ramps and try to make the most tricks you can, but do not take any unnecessary risks. After you start getting close to him, use your boost to go through the lamp-like object below him, and he will let out a cry. Then the stage will look like a digital place for a period of time. After it returns to normal, repeat the process. After the third strike you deliver, it will quickly turn into a race. If you are near the finish line, use the turbulence and your boosts at any costs. When you win you will see an intermission sequence showing what the legendary treasure really is.
Babylon Garden: Shortcut
Go past the first ramp and first turn. You will see boosters. Ride into one and you will see a small ramp. Make sure your jump is at maximum without slowing down, and hold the [Analog-stick Up]. If done correctly, you will ride the turbulence that will shortly be created by a jet.
Another shortcut is near the end of the track. When you see the end of the turbulence created by the jet, you will see a ramp. Go forward and make your jump maximum without slowing down, and hold the [Analog-stick Up]. If done correctly, you will cut half of the automated trail and reach the top faster.
Babylon Gardens: 100 rings
In Babylon Gardens, flying objects smash into the track near the end of the course near a jump. Charging your jump as much as you can, go off the jump at the correct angle or location in a straight line and get 100 rings. Note: This is easier to accomplish with a flying type character.
Dark Desert mission 4
Make sure to trick off the three drop-offs. When you get to the weird part, take the Speed route instead of the Flight route. There are three jumps on this one instead of two.
Egg Factory: Avoid losing speed
Instead of losing speed when hitting the lava, boost through it to keep your velocity.
Egg Factory: 100 rings
Go past the part where you are blown into the air by a vent. You should see a machine with spinning cocoon-like objects. Go to the inside of it, and you should see a capsule with 100 rings in it.
Egg Factory: Shortcut
After the part with the falling lava, turn and look to your right. You will see signs. One of them is crooked. Ride into it to smash through and reveal a shortcut.
Green Cave: Shortcut
Go near the end of the stage. When you see the first ramp, get your jump to maximum height without slowing down. Make sure you are going at maximum speed and hold the [Analog-stick Up]. If done correctly, you will hit three spider webs and cut off part of the track.
Get to the part where you are about to go onto the centipede thing in Green Cave. To make the centipede get to the opening faster, before you go on the centipede shoot off to the right. The centipede should go down or up. Either one is good. The centipede should go to the left, then go to the hole faster. In, White Cave follow the steps above except go to the right.
Play as Knuckles and go to Green Cave. When you start out, go at a normal speed. When you approach the grind rails, slow down. When you go around the turn you should see a power formation sign. Smash through the blockade under the sign and you will unlock a shortcut with a lot of dash panels which will send you to the forks just before the centipede ride.
Metal City: Shortcut
When you first begin, get a good start. Try to get an "Unbelievable" and you have perfected the first part. When you get to the first ramp, try to get your jump at maximum without slowing down, and hold the [Analog-stick Up]. If done correctly, you will be on a platform in the air. Another way to do this is go past the first ramp. As soon as you hit the ground, ride someone's turbulence and do a jump off it. If done correctly, you will hear a glass breaking sound and be on the platform.
Metal City: No traffic
Once you get off the short ramp and reach the fork in between two tunnels, go to the left. There will be no traffic. If you are going very fast this will be the best way to get through the tunnel without hitting any cars.
Metal City (night): Shortcut
When you first begin the race, go as fast as you can. Then, get the highest jump possible without going any slower. Also you can do one trick but it is easy to make a mistake; do not attempt it unless you are skilled at angles. If done correctly, you will have jumped on a platform that leads through a small part of the stage. The Power attribute is best here, because there are many obstacles unless you are skilled at dodging.
Metal City mission 1: Easy completion
Off the first ramp, do a back flip. After you have completed the flip, spin until you land. You will receive 10 points. You can perform stunts again on the drop-off just before the two tunnels. Do the same thing and you will receive 8 points. Trick on one of the slopes on the side of the four-lane road. Finally, on the ramp before the end, do a backflip off it. Make sure to release [A] on the very edge of the ramp. If done correctly, you will bypass the hanging part of the stage and be offered another ramp to trick off from. Use this to get 30 points or more.
Red Canyon: 100 rings
To get 100 rings automatically, when you get to the waterfall at the end of the stage, look to your left. You will see a ring box that holds 100 rings that will go into your bank and give you a level 3 Boost and Attack.
Red Canyon: Shortcut
There is a good shortcut that can only be used by flying characters. When you get to the first river stream with the waterfall ahead, go past the speed and power signs. Then there will be a path you can take to go forward or left. Go forward and turn left to see a booster. Get on it and do not turn left or right. You will then see three big looking rings (accelerators) and you will be taken to the Ferris wheel-looking object in a short amount of time.
Red Canyon mission 5: Air container
There is a container with some air inside of it between two barrels near the beginning.
Sand Desert: Shortcut
There is a straight shortcut that only power characters can use. When the race starts, you will be in the desert. Go straight ahead to the big coin-looking object and travel through it. You will be underground and be propelled in the air at the end of the tunnel. This is the time where you can do tricks. After you fall, you will be in front of the next ramp. The second shortcut is when you enter a place that looks like an ancient temple. Go straight ahead and knock the big rocks out of your way. The last shortcut requires perfect timing. When you go past the rocks you will see giant stone soldiers. One of them will be discolored (darker). Airslide into it and you will break through. Any other statue except that can not be broken.
Sega Carnival: Shortcut
When you get to the Crazy Taxi area, a green arrow will appear at the top of the screen. Keep to the left. You will see a sign with an arrow pointing to the right. Go behind the sign and you will see a spinning money symbol and a green circle on the ground. Go into the circle and a taxi will take you through a shortcut during the race.
Splash Canyon: Shortcut
As Tails in level 2 of the Hero storyline, there is a shortcut in a waterfall. After you make the first jump, when you are turning around the bend there is a waterfall. If you go through the beginning of it, you will find a fly kicker and accelerators.
World Grand Prix: Easy rings
After the end of each of the first five tracks, you will get a certain amount of points based on your rank in the race. In the end of all five races, you will be able to get a certain amount of rings:
Bronze Emblem (30 to 39 points): 300 rings
Silver Emblem (40 to 49 points): 400 rings
Gold Emblem (50 points): 500 rings
Finding shortcuts
Ramps almost always lead to shortcuts. To reach these shortcuts, hold [A] for as long as possible (without slowing to a complete stop), then release it at the very edge of the ramp.
Leveling up
During a race, once you collect enough rings you will level up. The stream your character's board leaves will change colors, and his or her attacks will become more proficient.
Knuckles: Boosting
When using Knuckles (especially on missions), you can boost often to give yourself an edge or complete the mission on time. Keep in mind that when you punch through objects you will gain air. When you get hit by objects you will lose air.
Hint Super Sonic: Get rings back
If you run out of rings, fall from a ledge and you will appear with 30 rings.
Faster boosts and stronger attacks
Depending on what level your attacks are, they will last for a longer time and have a paralyzing effect. At level 1, you will have a short boost and weak attacks; and no paralyzing. At level 2, you will have a medium sized boost and stronger impact on enemies; and short Paralysis. At level 3, you will have the longest sized boost and a powerful paralyzing attack on your enemies.
Air riding
When "air riding" (riding through the hoops with flight characters), all you really need to do as you go off most ramps is to move fast enough. No jumping is necessary. Pressing [X] or [B] to boost just before you reach the ramp will just about guarantee you getting into the air. When air riding, just press the [Left Analog-stick Up] to move your character downward, and [Left Analog-stick Down] to move him or her upward (like a plane).
Jumping
When you are about to jump to a second floor that is far in front, hold [A] and move the [Analog-stick Up]. Then, jump just when you reach the edge of the ramp. If the second floor far up from you, hold [A] and move the [Analog-stick Down]. Then, jump just when you reach the edge of the ramp.
Automated trails
To use automated trails to your advantage, wait for when the Analog-stick spinning part begins. When you spin it, it fills your air gauge. However if you keep spinning it beyond that, the speed meter will go faster up to a certain point.
Turbulence
To use turbulence effectively, wait for it to appear and ride on it. After you see arrows on the side, move towards it to gain speed and air. Also, it is an effective way to get in position to pass and hit an opponent.
Trick sets
Every character has three sets of tricks that can be done. To see all three sets you must use the skates, boards, and motorcycles.
Voice announcer
When you play as Shadow, first perform a few tricks. If you listen closely, you can hear the announcer say "She has made a perfect landing!" or "She landed perfectly and has taken advantage of the speed boost."
theme
In Hero's story mode just before Jet jumps through the window listen very carefully. You can hear the theme from playing in the background.
Billy Hatcher And The Giant Egg reference
In Sega Carnival, when you get shot out of the cannon you will turn into a ball. With Sonic, you will turn into a white ball with blue polka dots. This ball resembles an egg from the game Billy Hatcher And The Giant Egg.
Theater movies
Complete the indicated story to unlock the corresponding movie in the "Theater" option.
Movie 1: Complete Hero Story
Movie 2: Complete Babylon Story
Movie 3: Complete Final Story
Glitch: Wrong dialogue
Before the Dark Desert race, there is an intermission sequence showing Storm holding a chip-looking object. When everyone starts to read it, Storm will say "It's about the Babylon treasure from our ancient ancestors.", but it reads "It's about the Babylonian treasure from our ancient ancestors."