It is normally $23.96, but is temporarily on sale for $5.96. Each game, except Metal Slug 2, also has local and online multiplayer. Each game supports GOG Galaxy support, including leaderboards. In the 'METAL SLUG Bundle,' you get, well, Metal Slug! This bundle comprises Metal Slug 1, Metal Slug 2, Metal Slug 3, and Metal Slug X. Here are the Codebreaker codes and cheats for Metal Slug Advance: Infinite Health: 320 Infinite Ammo: 82000072 FFFF Infinite Bomb: 3200006., Metal Slug Advance Gameboy Advance. Click the PC icon in Cheat Engine in order to select the game process.