At the title screen, press Left, Right, Up, Down, L1, R1, L1, R1. If you entered the code correctly, you will hear a sound. The cheats, tips, artwork, and sound tests for all games will be unlocked. Alternately, enter the "Extras" menu and play the Capcom version of Quiz And Dragons. One cheat for each game will be unlocked at various point levels in your score. You can also set the game on the Easy difficulty setting to make it easier to unlock the codes.
Capcom Classics Collection: Volume 2