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Mighty Bomb Jack

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Title Screen

Mighty Bomb Jack

Developer: Tecmo
Publisher: Tecmo
Platform: NES
Released in JP: April 24, 1986
Released in US: July 1987
Released in EU: 1988
Released in AU: 1988

GraphicsIcon.png This game has unused graphics.
RegionIcon.png This game has regional differences.

DCIcon.png This game has a Data Crystal page

Mighty Bomb Jack is a platformer/adventure game with strange controls and obscure secrets.

Unused Graphics


These tiles would make a nice in-game map display.

Compass, facing east and north. The rim graphics are asymmetrical, so it can't be flipped to get the other two directions, and palette swapping won't work either. This may have just been a collectable item graphic.


A walking enemy, unlike most in the game. This appears near the slave graphics, were the "slave rooms" (where Jack's brothers are held) meant to have guards?

Typical weird flying enemy.

A wall hatch which opens and closes, and was probably intended to shoot the unused fireballs. The final game contains no stationary enemies or projectiles at all.


Various bonus-y looking item things.

These are from a single row of tiles in the middle of the graphics data, so they may be related somehow. The two smiley faces are identical. Tecmo was known for hiding references to other games (including a song from Star Force in this game), so this could be a Star Force reference, although the ship looks different.

Some Easter eggs hidden by the developers, including an aiaigasa. The game has no credits, so it isn't clear who the initials represent.

(Source: Original TCRF research)

Regional Differences

Title Screen

Japan USA Europe
Mighty Bomb Jack (Japan) (Rev A).png MightyBombJack.png Mighty Bomb Jack (Europe).png


The international versions moved some items in order to make them easier to find and allowed you to break secret blocks in one jump, rather than several.