You are able to use one of these cheats for each level completed. Note: Does not work on score attack mode.

• Add Double Shot Power: UP, UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, L2, R2
• Add Laser Power: UP, UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, L1, R1

For each hour of game play 1 bonus credit is added to your game. After 18 hours free play is unlocked.

Beat the game to unlock weapon edit function. Press R1 on the weapon selection screen to activate weapon edit mode.