Metal Slug Anthology Psp Cheat Codes __full__

Metal Slug Anthology (PSP) — Cheat Codes & Helpful Tips

Safe Practices

  • Back up your saved game before using mods or cheats.
  • Use cheats only offline; cheating in multiplayer or shared leaderboards is unfair and often blocked.
  • If you use CWCheat, keep only the cheats you need enabled to reduce instability.

Important Notes (Read before trying)

  1. No "infinite credits" code needed – The PSP version allows unlimited continues by default. Just press START on the game over screen.
  2. Region matters for MS1 code – The ↑ ↑ ↓ ↓ ← → ← → ╳ ○ code for Metal Slug 1 works on US and EU versions. For Japanese copies, try ← ← ← ← → → → → ↑ ↑ ↑ ↑ ↓ ↓ ↓ ↓ ╳ ╳ ╳ ╳ (very finicky).
  3. No invincibility / infinite ammo codes – Those require a cheat device like CWCheat (custom firmware only). This guide covers only built-in, official cheats.
  4. Save your game after unlocking extras – The PSP saves progress to your memory stick automatically when you return to the main menu.

2. Maximum Ammo for Current Weapon

  • Code:
    Hold ○ + ↑, ↓, ←, → (release ○)
  • When: While holding a special weapon (Heavy Machine Gun, Rocket Launcher, etc.).
  • Result: Ammo fills to 255 or max capacity.