Shoot down 6 ghosts on their way to scaring you

Edit a Bonus level in the Builder.

Perform all of Sonic's moves in Act 2.

Defeat Metal Sonic.

Pull off a seven or more trick combo or six trick combo ending in a finishing trick.

Complete a "Build Your Own Adventure".

Destroy Indy with Spalko.

Restore the CHEMICAL PLANT Stage Gate.

Race through the first stage.

Clear the Mountain Stream.

Clear the Great Whirlpool in Arcade.

Trish Hates You.

Capture Solitude or Windhelm