- 0.132: Tafoid and Fujix changed year to 1988 (Arcade TV Game List book).
- 0.131u2: Added 'Difficulty' dipswitch.
- 0.122u7: Fixed gfx1/2/3 rom loading. Added dipswitches 'Coinage' and 'Flip Screen'.
- 0.89u3: Changed Z80 CPU2 clock speed to 5MHz.
- 0.36RC1: Added dipswitches 'Coin A', 'Demo Sounds', 'Bonus Life' and 'Lives'.
- 0.36b9: Changed clock speed of the 2x YM2203 to 1.5MHz.
- 0.36b4: Paolo Venturi added Ark Area (UPL 1988?).
- 31st August 1999: Gerald Vanderick added Ark Area to the Mutant Night driver.