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Mega Man ZX

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Title Screen

Mega Man ZX

Also known as: Rockman ZX (JP)
Developer: Inti Creates
Publisher: Capcom
Platform: Nintendo DS
Released in JP: July 6, 2006
Released in US: September 12, 2006
Released in EU: June 22, 2007

GraphicsIcon.png This game has unused graphics.
ItemsIcon.png This game has unused items.
DebugIcon.png This game has debugging material.
RegionIcon.png This game has regional differences.

The Mega Man Zero series meets Super Metroid.

Developer Text

There is Japanese text in the out of bounds regions of certain levels. Its purpose is unknown.

Area N in particular contains otherwise unused tiles in these regions.

Only some of these texts can be easily translated. Most of them are a combination of "上" - up, above and "共" - same, together. All of these end with a number followed by 上.

6 共上 共上 共上 共上 共上 共上 共上 共上 共上 共上 共上 共 36上

7 上 共 上 共 上 共 上 11上

ビッタ - bitter(?)

50上 共 上 共 上 53上

ボ上 - bo up (Maybe boss above?)

3 上 4 上 共上 共上 共上 8 上 9 上 10 上

共上 共上 共上 7上

ボス - boss

(Source: Jack Walker)

Unused Graphics

Model O

There are unused colored sprites of Model O in the game.

Not to be confused with Model Z.


The game itself uses a browned-out variation of one of the sprites, and the semi-Biometal itself is named "Mysterious Stone".

Though Model O is not obtainable in easy mode, using cheats to obtain it will use these sprites when Vent or Aile are saved from bottomless pits by the Biometal. This implies that Model O may have been intended to be obtained by defeating Omega in easy mode.



Omega has some leftover frames of animation that were originally used in the final scene of Mega Man Zero 3 after he had been defeated. These can't be seen in-game without modifying the ROM.

Leftover Healthbar Emblem

The Omega symbol from the Zero series (not to be mistaken with the "O" used in the Omega and Z3/Z4 fights) remains in the game's data.

MMZX HealthbarSheet.png
(Source: Jack Walker)

Unused Item

The game contains several card keys, each with a color, but one of them, "White Card Key", is unused. Its description is "It doesn't take a genius to figure out this opens white doors." There are no doors that require its use.

Debug Room

Click to enlarge.

The game contains a debug room with several features for testing, which include normal surfaces, walls that can't be climbed, a slippery floor, a moving floor, a sinking area, one ladder, water, and spikes. The room can be accessed with the Action Replay code, 22160484 00000000.

Regional Differences

Title Screen

Aside from the logo change, the "Rock On!!" text found on the left and right of the bottom screen is also removed in non-Japanese versions of the game.

Japan US/Europe
RMZX-Title.png MMZX.png


The Japanese version has all plot-relevant discussion with NPCs voiced, with full voice-acting. All of the other versions remove it completely.