Code Entry
An Action Replay is a separate cartridge used to enter codes into games. The Action Replay automatically detects what game is inserted and brings up the appropriate code menu for that game. Some versions of might be preprogrammed with codes for "Metal Slug 7." You will only need to select which codes you want to use from the menu. In most cases, the codes must be input manually by selecting "Enter New Cheat" from the top of the menu.
Survival Codes
Several of the Action Replay codes for "Metal Slug 7" will improve your ability to survive in the game's harsh levels. To become invincible, enter 220f7c78-0000005f. This code will prevent you from reacting to being shot or taking damage. Get infinite lives by entering 220f7ef7-000000ff-220f7ef8-000000ff.
Weapon Codes
Ammo conservation and weapon choices are a major part of beating "Metal Slug 7." Ammo and weapon cheats will often make the game easier to beat than enabling invincibility mode. Get infinite ammo for your primary weapon by entering 120f7cb4-0000ffff. Get infinite ammo for your secondary weapon by entering 220f7cb1-000000ff-220f7cb2-000000ff. Enter 220f7cb0-00000001 to always have grenades as your secondary weapon, 220f7cb0-00000002 to always have fire bombs as your secondary weapon.
Other Codes
"Metal Slug 7" has three additional Action Replay codes to unlock areas of the game or increase your score. The code to always have the maximum multiplier for your score is 220f7cc9-00000040-220f7cca-00000072. Unlock all the levels in the game by entering 220f4ae8-00000006. Rescue all the POWs in the game by entering d5000000-000000ff-c0000000-0000000c-d8000000-020f5620-d2000000-00000000.