Note: An cartridge is required to use the following codes. Change the value of the indicated memory locations to adjust the corresponding game feature.
Type commander at the high score screen. Note:It is not entered as a name. Then, press one of the followingkeys to activate the corresponding cheat function.
Allow the game to load, then press [Space] whenprompted to press fire. Use the keyboard or mouse to change bulletspeed and other options.
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