Metal Slug 3 Cheats

Completion bonuses:
After finishing and saving the game under normal difficulty you will unlock the "Fat Island" and "UFO" mode options at the main menu.

Continue game play:
Upon losing every life except for one in arcade mode, press Start on controller two to continue the game using that player.
User Cheat by Poor_Mans_Gamer

Helper monkey:
All throughout the game you will find a wooden crate containing a monkey wielding a gun who will help you fight enemies. Remember: Do not rely on the monkey helping all the time. Sometimes he will stop to pick his nose and do other things.
User Cheat by Poor_Mans_Gamer

Metal Slug 3 Code Breaker Codes