Get Metal Charecters in multiplater:
To get metal charecters in the multiplayer matches simply choose the event as usual then you'll need to pick the teams. Once you have done that the origonal 1990's loadin screen will come up whilst it loads the level. When its loading hold the A+Y buttons down and don't stop holding them until the entire loading process has finished. You should end up with metal charecters on the team you used the cheat with.
Fill up the team blast bar quickly:
To fill up the team blast bar without killing any enemies or collecting any rings, just switch to power formation during any level with any team and press the B button repeatedly until the bar goes to maximum. When you're pressing the B button the power formation leader should be punching, throwing or whatever that chosen person's attack are like. Whilst they are punching away at thin air the team blast bar is going up and up.
Get easy "A" ranks:
Get all level up for each character, donīt die, and complete the level as fast as you can. Note: It is easier if you have already beaten last story, it is easier if you choose challenge mode and go level by level and then do the bosses and it is preferable if you do A rank for team Rose,then Team Chaotix,then Team Sonic and then Team Dark.
(supplied by: Kirby9021)
Finding 10 hermit crabs in Team Chaotix:
In the first stage, where you have to find 10 hermit crabs, when you see a purple flower sticking out of the wall, switch to Charmy (fly type) and get near the flower. When the "B" button signal appears near his face in the top right corner, press B and the flower will open. Jump into the blue swirl and you will be taken to a new place (jump back into the flower if you want to go back). Usually, there is a hermit crab when you take the blue swirls on the flowers.
(supplied by: DragonHUL)
Make Sonic, Knuckles, Shadow, Omega, Amy, Big The Cat, Espio and Vector dance on a rail:
Using any of the characters listed above, jump on a rail. Keep pressing B and it will look like they are dancing on the rail (Note: If someone is near you and you do this trick, they will do they same thing).
(supplied by: DragonHUL)