Metal Slug First Mission Cheats and Codes
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Title
System
Cheat
Code
Metal Slug First Mission
Any
Invincibility
Make sure your difficulty setting is set to at least "normal" and then complete your ranking to 23/23 (you may need to beat the game a few times to do this). After you get your last ranking, you will be able to endure all damage except falling into a pit of nails or falling into a hole.
Metal Slug First Mission
Any
Play As A Girl
To play as a girl, beat the game and watch the credits roll by. The girl will be available when you start a new game.
Metal Slug First Mission
Any
Play As A Boss
To play as a boss beat the game on the hardest difficulty and let the credits roll by. When you start your next game the boss will be avalible
Metal Slug First Mission
Any
Level Select
Successfully complete the game to unlock the "S-Continue" option that allows any level to be played again.
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