- 0.96: Peter Sealy fixed collision detection in Bio Attack and added missing RAM to the Taito SJ memory map.
- 0.92: Removed button 2 and 3.
- 0.84u6: Changed input from 1 to 3 buttons.
- 0.68: Changed description to 'Bio Attack'.
- 0.67: Changed description to 'Bio-Attack'.
- 0.60: Fixed fight against bosses graphics in Bio Attack.
- 0.36b1: Sprite-sprite collision detection and other improvements in the Taito SJ games. This fixes Bio Attack [Zsolt Vasvari]. Fixed dipswitches. Added layer prom eb16.22.
- 0.34b5: Thierry Lescot added Bio Attack (Taito 1983 (Fox Video Games license)). Known issues: No collision detection.
- 19th September 1998: J-ROM dumped Bio Attack.