Unlock Raven:
     Enter RidinwRaven at the Cheat Menu.

Level Select
     At the Cheat Menu, enter 'GimmeGimme'.

Perfect Jumps
     At the Cheat Menu, enter 'StickiT'.

Low Gravity
     At the Cheat Menu, enter 'MegaLeg'.

Disable Tree Collisions
     At the Cheat Menu, enter 'buzzsaW'.

Steezy Snowboard
     At the Cheat Menu, enter 'ChillinwSteezy'.

Free Movement
     At the Cheat Menu, enter 'ZiPster'.

View Replays From Programmers
     Go into Replay Theater and highlight Hard Disk. Press Right until
you see Game Disc. You will find replays from the programmers. You can
also  play  these levels by highlighting a replay, then go up to Watch
Replay. Press Right until you see Challenge.