Move: Analog Stick
Jump: A (Hold A to jump higher.)
Homing Attack: Press A after a jump
Summersault: B or X (hold down for maximum power.)
Shadow:
Same controls as Sonic
Both:
Jump on rails and grind them by holding B. If you start to lose balance, use the analog stick as best you can to straighten up.
Knuckles:
Move: Analog Stick
Jump: A (Hold A to jump higher.)
Glide: Hold A while in the air and move around. Grab onto a wall by gliding at it. You can climb walls.
Dig Into Wall: Press B when grabbing onto a wall.
Dig Into Ground: Jump and press B or select dig from the action window.
Punch: Press B, press it twice for a double punch, and three times for two punches and a jumping uppercut.
Rouge:
Same controls as Knuckles except that Rouge kicks and digs with her feet.
Tails Inside of Cyclone:
Move: Analog Stick
Jump: A (Hold A to hover glide once you get the upgrade.)
Small Laser: Press B or rapidly for many lasers.
Big Laser: Hold B and you will see a red laser which doesn't do damage but locks onto an enemy. Lock onto an enemy and let go of B to release a big laser. You can target many enemies at once by locking onto them at the same time. The more enemies you destroy at once, the more points you get!
Eggman Inside of Egg Walker:
Same as Tails Inside of Cyclone.
Tails in Chao World:
Move: Analog Stick
Jump: Press A (hold down to jump higher.)
Helicoptor: Hold A while in the air.
Tail Attack: Press B after selected from the action menu.
Eggman in Chao World:
Same as tails except he can do helicoptor and he wacks along the ground instead of Tail Attack.
Everybody (not in a machine.):
Pick Up: B or X next to an item
Put Down: B or X after picking something up
Throw: Jump and press B or X after picking something up.