The archaic 1978 Bally Astrocade was a home video game system later withdrawn after being trounced by competition. It was relaunched later by enthusiasts but was never very successful. The System ROM had 4 games built into it; Gunfight, Checkmate, Calculator and Scribbling, as shown in the screenshot below, that could be selected to play on the system. The Astrocade could also take cassette shaped cartridges which were inserted whilst it was turned on to load other software.
This driver runs slowly on even a StrongARM, at only 34% of full speed. The screenshot you can see below is from Gunfighter.
Speed Rating:
StrongARM
Technical details
CPU - Z80 running at 3.579 MHz.
Display - Upto 320x204 with expanded RAM, in upto 8 colours.
Sound - 3 voice channels, 1 noise channel and a vibrato
ROM - 8Kb built in, 8Kb program ROMs
RAM - 4Kb upto 64Kb
reference - Bally
Astrocade FAQ