Spider-Man:
To earn Spider-Man as a secret character you must earn 100% completion on all the THPS2 levels.
Unlimited Special:
Pause the game and Exit. play a 2 player game. both of the players have to do this together. pause then hit up, down, up, left. it should say its beginning to smell like burning plastic folks
Get Officer Dick:
Finish career mode with 100% using any skater
Get Original Tony Hawk