> It means that game uses some kind of anti bootlegging/anti piracy feature on the > original PCB that isn't understood/emulated in MAME, so certain things may be wrong. > Bad graphics, won't boot, sometimes subtle things like the game will reset in later > levels, or enemy AI is wrong.
In many respects, it is much like GAME_NOT_WORKING because there isn't enough confidence or there is uncertainly that you can reasonably play the game without experiencing some difficulty.
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