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Metal Slug XX (PlayStation Portable)

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This page contains changes which are not marked for translation.

Title Screen

Metal Slug XX

Based on: Metal Slug 7
Developer: SNK Playmore
Publishers: SNK Playmore (JP), Atlus (US), Namco Bandai Partners (EU)
Platform: PlayStation Portable
Released in JP: December 23, 2009
Released in US: February 23, 2010
Released in EU: June 25, 2010

AreasIcon.png This game has unused areas.
GraphicsIcon.png This game has unused graphics.
DebugIcon.png This game has debugging material.
SoundtestIcon.png This game has a hidden sound test.
LevelSelectIcon.png This game has a hidden level select.
RegionIcon.png This game has regional differences.

Metal Slug XX is a PlayStation Portable port of Metal Slug 7. This one is the upgraded version with alternate paths, multiplayer and, for King of Fighters fans, Leona Heidern as a downloadable character.


PrereleaseIcon.png Debug Menu
This is the debug menu.

Unused Areas

Metal Slug 7 Leftovers


MetalSlugXXPSP-56a.png MetalSlugXXPSP-56b.png

A tunnel filled with a bunch of soldiers and a particular enemy vehicle. Seemingly unaffected from remaining time, whole with slow-motion motorbikes, although the MV-280 jeeps are now invisible... without for their rockets and firing effects.

(Source: A big thank you to all of your hard work.)



This leftover is a pitch black level. Going to the right leads to a boss fight with Allen O'Neill.



This is an empty duplicate of the Mission 4 boss arena with an invisible platform in the lower-left.

Unused Graphics

The PSP version of the game's graphics can be found in the DATA.BIN file in the USRDIR/ directory.


3 frames of the throwing-while-crouching animation from the previous games were converted for Leona, but not the rest.

One of the two unused frame of unused alternate shooting up and turning around. The second one is Eri's.

Uhh... I don't think you can drown in the game.
Leona drowning, but there's no place to drown in this game.

A variant of Leona's up-and-turning frame. The sprite in-game doesn't show her other arm supporting the gun.

Leona borrows most of Eri's edge-wobbling animation but cuts out the heart-clutching part when it plays in-game. The transitionary frame and machine gun version are unedited.

Unlike Eri, Leona doesn't play this animation after firing the HMG for a prolonged amount of time.

Leona-uphmg.gif Leona-uppistol.gif Leona-win.gif
Unused leftovers or unnecessary Eri conversions.

(Source: Metal Slug XX Level Select)