You can unlock hidden galleries and music by completing all seven games (Metal Slug 1, 2, X, 3, 4, 5, and 6) under specific conditions. Note that for these to count, you must defeat the final boss of on Hard mode.
: On the bridge before the mini-boss tank, shoot the small bush near the water to spawn three hidden prisoners who give you items.
On Level 1, enemies fire significantly slower bullets, and you take less damage per hit. This is the legitimate way to "cheat" your way through the notoriously difficult later levels.
: Theoretically unlocks a hidden cheat menu or debug features, though effectiveness varies. Game-Specific Memory Codes (CWCheat/PPSSPP)
While on the PSP doesn't feature traditional button-input cheat codes like "Infinite Lives" or "Level Select" found in older console games, you can unlock a wealth of bonus content and use game-breaking modifications through specific in-game challenges and external tools. In-Game Unlockables
Manually choose between the Heavy Machine Gun, Shotgun, Flame Shot, etc. Infinite Time: Stops the mission timer. Infinite Lives: Never reach the "Game Over" screen. How to Enable Cheats (PPSSPP) Metal Slug Anthology
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You can unlock hidden galleries and music by completing all seven games (Metal Slug 1, 2, X, 3, 4, 5, and 6) under specific conditions. Note that for these to count, you must defeat the final boss of on Hard mode.
: On the bridge before the mini-boss tank, shoot the small bush near the water to spawn three hidden prisoners who give you items. Metal Slug Anthology Psp Cheat Codes
On Level 1, enemies fire significantly slower bullets, and you take less damage per hit. This is the legitimate way to "cheat" your way through the notoriously difficult later levels. You can unlock hidden galleries and music by
: Theoretically unlocks a hidden cheat menu or debug features, though effectiveness varies. Game-Specific Memory Codes (CWCheat/PPSSPP) On Level 1, enemies fire significantly slower bullets,
While on the PSP doesn't feature traditional button-input cheat codes like "Infinite Lives" or "Level Select" found in older console games, you can unlock a wealth of bonus content and use game-breaking modifications through specific in-game challenges and external tools. In-Game Unlockables
Manually choose between the Heavy Machine Gun, Shotgun, Flame Shot, etc. Infinite Time: Stops the mission timer. Infinite Lives: Never reach the "Game Over" screen. How to Enable Cheats (PPSSPP) Metal Slug Anthology