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Air Buster (Genesis)

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Title Screen

Air Buster

Also known as: Aero Blasters (JP)
Developer: Inter State Software
Publisher: Kaneko
Platform: Genesis
Released in JP: January 31, 1991
Released in US: 1991


CodeIcon.png This game has unused code.
RegionIcon.png This game has regional differences.


Unused Checksum

Located at $000318-000343 is programming to run a checksum and compare the result to the value stored at $00018E, which is seen in many Genesis titles. In this game, it's branched over instead. Even if the block of code were to execute, the branch that determines the checksum status was replaced with a two 4E 71 NOP commands.

Unused Configuration Mode Branch

The Configuration Mode has seven available selections, but the jump table that executes the code for each includes an 8th branch command that goes unused. It's located at $001434 in Aero Blasters and $001414 in Air Buster. It branches to the same address as the previous entry, which is the programming to exit Configuration Mode.

Regional Differences

Japan US
AeroBlastersMD-JPtitle.png Air Buster Genesis-title.png

The logo is different between regions. The US logo is smaller compared to the Japanese version, changes the planes at the top right, removes the second game name and changes the font of Trouble Specialty.