BUG: The original 1987 release has an incompatibility problem with 7800 systems with Rev C pcbs (the 1988 re-release doesn’t), where the graphics suddenly become half as wide as normal, and the sprite colors will change.  The difference between the 1987 and 1988 carts is the 1987 carts use a Rev B pcb which has a resistor on the +5v line.  Another glitch may appear in which black bars will appear across the top of the screen.


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