Unlock Special Menu and Movie Mode:
Complete the game on the Easy difficulty setting.
Unlock 2-Player Mode:
Complete the game on Normal difficulty setting. Gameplay in this mode has one player moving using a Dual Shock 2 controller while the other player shoots with a GunCon2.
Unlock Infinity Mode:
Complete the game on Normal difficulty setting getting at least a rank of 'B' and without using any Resurrection Packs.
Unlock Game Art:
Complete the game on Hard difficulty setting.
If you're feeling destructive use your gun to shoot the ending credits.
Added by: Sanzano Sep 26th 2007, ID#27810