Metal Slug Cheats for PlayStation
Also on: Gameboy Advance
Press X, Circle, Square, Triangle, Triangle, X, Circle, Square at the 'Options' screen.
First you start the game. While you are on the first level you push start hold r1 and push triangle, triangle, square, circle and push select.
You should hear a voice saying cheat mode. This will allow you to shoot indian curry and burn holes through people!
Also on: Gameboy Advance, check out those pages for more help with this game.