Bonus Characters for Versus Mode
You can unlock new characters for the Versus Mode by purchasing pictures in Sonics Room. For example, if you buy all pictures of Tails, you unlock Big the Cat. The following characters are available:

Big the Cat - Buy all pictures of Tails Chao - Buy all pictures of Knuckles E-102 Gamma - Buy all pictures of Amy Super Sonic - Buy all pictures of Sonic



Disc Artwork
To discover some hidden artwork on the disc, put it into your PC CD-ROM. The images will be labeld C20.bmp and so on.