There is one primary button-based code commonly cited for accessing a hidden menu within the options screen.
Leo wasn't just playing for high scores tonight; he was a "Digital Archaeologist." He had spent hours scouring archived forums and old fansites for the legendary that supposedly unlocked the game's deepest secrets on the PSP. Metal Slug Anthology Psp Cheat Codes
The for PSP does not feature traditional "cheat codes" entered during gameplay. Instead, players typically use exploit-based methods for currency or external CWCheats through homebrew/emulators to modify game values like health or ammo. Standard Unlockables & Exploits There is one primary button-based code commonly cited
For those playing via the PPSSPP emulator or on a PSP with Custom Firmware (CFW), you can enable a wide range of "hacks" by importing a cheat.db file or creating a ULUS10154.ini file. Invincibility: Player cannot take damage. Infinite Ammo/Bombs: Never run out of heavy weaponry. Infinite Ammo/Bombs: Never run out of heavy weaponry
To quickly earn tokens for the gallery, play through Metal Slug 3 or 5 on Hard. Just after defeating the final boss, save the game immediately. Watch the credits, then return to the main menu to receive 5 tokens. Reload your save to repeat the ending and farm tokens indefinitely. CWCheat & PPSSPP Codes