While Metal Slug Anthology 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
Metal Slug Anthology for PSP remains one of the most impressive portable compilations ever made. While the difficulty can feel unfair on a small screen, the developers wisely left the arcade cheat codes intact. From turning the battlefield into a flamingo parade to giving yourself 30 continues, these codes open up the game for casual players and allow veterans to skip to the levels they love most. Metal Slug Anthology Psp Cheat Codes
As he reached the final boss—the towering, multi-eyed alien mothership—Leo didn't feel the usual spike of anxiety. He wasn't worried about his last life or the "Game Over" screen. With the "Infinite Vehicle" cheat active, he summoned a Metal Slug tank that never took damage. While Metal Slug Anthology on the PSP doesn't
| Effect | Code | |--------|------| | Level Select | At main menu: Hold L + R → Up, Up, Down, Down, Left, Right, Left, Right, Circle, Triangle | | Fat mode (characters become fat when eating food) | Up, Down, Left, Right, Up, Down, Left, Right, X, Square | Infinite Grenades (one life only): ←, →, ←,
←, →, ←, →, ↑, ×, ↓, ○ – Enter at any time. Grenade count resets to 20.As they continued to play with the cheat codes, Alex and Ryan felt like they were invincible. They breezed through levels, defeating bosses with ease. They even unlocked some of the game's secret characters, including the mysterious Fio and the tough-as-nails Eri.
A common issue PSP players face is not a cheat, but a glitch that seems like one. Because the PSP has fewer buttons than an arcade stick, the developers mapped "Scroll Lock" (to prevent the screen from moving) to a combination of buttons (usually holding the D-pad diagonally or holding a specific shoulder button).