ZX81 BIGG OIL V1.2

Manic action game for 16K ZX81.

Plays on standard machine.

Enhanced with ZonX compatible sound (ZonX, Mr.X, ZXpand+, ZXpand+AY) and joystick control (ZXpand+, ZXPand+AY)

• Reduced memory wastage
• New display routine

ZX81 BIGG OIL V1.1

Manic action game for 16K ZX81.

Plays on standard machine.

Enhanced with ZonX compatible sound (ZonX, Mr.X, ZXpand+, ZXpand+AY) and joystick control (ZXpand+, ZXPand+AY)

• Instructions screen.
• Prevents you re-using keys when redefining.
• Secret bonuses. Shhhh!
• Tidies a few loose ends in code.
• Much memory shuffling to remove holes when assembling.

ZX81 BIGG OIL V1.0

Manic action game for 16K ZX81.

Plays on standard machine.

Enhanced with ZonX compatible sound (ZonX, Mr.X, ZXpand+, ZXpand+AY) and joystick control (ZXpand+, ZXPand+AY)