Pigskin 621AD - Ancient Archrivals on a Rampage © 1990 Midway Mfg. Co.
Bally Midway MCR 68k hardware
Main CPU : Motorola 68000 (@ 7.7238 Mhz)
Sound CPU : Motorola M6809 (@ 2 Mhz)
Sound Chips : Yamaha YM2151 (@ 3.57958 Mhz), DAC (@ 3.57958 Mhz), HC55516 (@ 3.57958 Mhz)
Players : 2
Control : stick
Buttons : 3
The game's subtitle, 'Ancient Archrivals on a Rampage', is a reference to co-creators Jeff Nauman and Brian Colin's games, Arch Rivals and Rampage.