Battle Ace

Battle Ace
Developer: Hudson Soft Publisher: Hudson Soft Platform: SuperGrafx Released in JP: November 30, 1989 This game has debugging material. This game has a hidden sound test. This game has a hidden level select.

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The first and only flight-sim game for the SuperGrafx.

Sound Test

Hold Select and press Run at the title screen.

Cheat Menu

A cheat menu which was disabled in the final game can be re-enabled by applying the below patch to a headerless ROM, then entering the above sound test code:

Download Battle Ace Cheat Menu File: Battle Ace Cheat Menu.zip (1 KB) (info)

The menu contains a level select, and toggles for lives and invincibility.

(Source: Chris Covell)