This guide details the unlockables and secrets available within the game, as well as how to implement cheats using emulation. Unlocking Special Features (Legit Ways)
Metal Slug Anthology for PSP is a compilation of classic Metal Slug run‑and‑gun titles (Metal Slug 1–6, Metal Slug X, and Metal Slug 3 [depending on region]) ported to the PlayStation Portable. Players often seek cheats, unlockables, and gameplay tips to access secret content, powerups, and alternate endings across the included games. Metal Slug Anthology Psp Cheats
If you're looking for more cheats and tips, here are some additional resources: This guide details the unlockables and secrets available