Metal Slug 3 Cheats...
Arcade Mission - Final Mission
Complete Mission 5 On Arcade Mission.
Arcade Mission - Mission 2
Complete Mission 1 On Arcade Mission.
Arcade Mission - Mission 3
Complete Mission 2 On Arcade Mission.
Arcade Mission - Mission 4
Complete Mission 3 On Arcade Mission.
Arcade Mission - Mission 5
Complete Mission 4 On Arcade Mission.
Chubby Isle Paradiso
Complete Arcade Mode Once.
Completion Bonuses
Successfully complete and save the game under the normal difficulty setting to unlock the 'Fat Island' and 'UFO' mode options at the main menu.
Storming the Mothership and Chubby Isle Paradiso
Complete Arcade Mission Once.
