Completion bonuses
Successfully complete the game on the easy difficulty setting to unlock the special menu and movie mode.
Successfully complete the game under the normal difficulty setting to unlock two player mode. In this mode, one person moves using a Dual Shock 2 controller, while the other shoots with a GunCon2.
Successfully complete the game under the hard difficulty setting to unlock the game art.
Unlockable List
Beat Normal Mode to unlock Duo Mode. This is a setup where the first player shoots with the guncon and the second player is in control of the direction with the controller. Beat Hard mode to unlock concept art. Beat the game on Normal with a B ranking or higher and do not use a resurrection pack to unlock infinity mode. Unlock the special menu and movie mode by beating the game on easy.
Completion bonuses...