Unlock Trophies
A Small transformation(Silver) - Get squished by Amy's Down Punch in Arcade mode or offline versus.
Honey the Cat(Silver) - Use Honey the Cat in Arcade mode or Offline versus(Press Start on Amy during character selection).
Perfect (Gold) - Beat any Stage without taking damage on any difficulty.
Stage 1 Complete(Bronze) - Complete Stage 1 on any difficulty.
Stage 2 Complete(Bronze) - Complete Stage 2 on any difficulty.
Stage 3 Complete(Bronze) - Complete Stage 3 on any difficulty.
Stage 4 Complete(Bronze) - Complete Stage 4 on any difficulty.
Stage 5 Complete(Bronze) - Complete Stage 5 on any difficulty.
Stage 6 Complete(Bronze) - Complete Stage 6 on any difficulty.
Stage 7 Complete(Bronze) - Complete Stage 7 on any difficulty.
The Enemy Within(Silver) - Fight a Mirror Match in Arcade mode or Offline versus.
Unlock Alternate Characters
Dr. Eggman - Press [Start] on Bean on the character select.
Honey the Cat - Press [Start] on Amy.
Metal Sonic - Press [Start] on Sonic.
Super Sonic - Complete the game with Sonic.
Play as Super Sonic
Begin a game playing as Sonic, and win against the first eight enemies without being defeated.
When fighting against Metal Sonic defeat him in the first round, and in the second round turn sonic in to super sonic by pressing [Back] + [Punch] + [Kick] at the same time. If done correctly sonic will morph in to the invincible super sonic.
Select Main Menu Music
Press [LT] + [RT] in the main menu to cycle through music. You can select any song in the game, including a few that aren't used elsewhere.