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Space Invaders '91

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Title Screen

Space Invaders '91

Also known as: Space Invaders 90 (JP)
Developer: Taito
Publisher: Taito
Platform: Genesis
Released in JP: September 7, 1990
Released in US: 1991


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.


Space Invaders '91 is Space Invaders with a health bar, some more annoying enemies, and a company that paid attention to what the current year is (see right).

Round and Sound Select

The game has both a secret Round Select and a secret Sound Select (sound test) that run on the same code and work the same way.

Space Invaders '91 Round Select.png

  • Round Select: press A + C + Start on the title screen, then B, A, C.

Space Invaders '91 Sound Select.png

  • Sound Select: press A + B + Start on the title screen, then Right, Right, Down.

Up and Down scroll; Start selects.

Regional Differences

Hmmm...
To do:
Compare ROMs.
Space Invaders '90 Space Invaders '91
Spaceinvaders90-doriasta1.png
Spaceinvaders90-doriasta2.png
Spaceinvaders91-doriasta1.png
Spaceinvaders91-doriasta2.png

The enemy layouts in the two sections of the final round, Doriasta, come together to form the phrase "インベーダー90" ("Invader 90", part of the game's Japanese title; the ー after the ベ is underneath for some reason) in the Japanese version and "INVADERS" in the US one.

This in turn leads to the two versions having different amounts of enemies: 32 and 40 respectively in the first section, 42 and 41 respectively in the second.