Additional Hardware RequirementsRAM at 8-40K : Chroma / ZXPand / ZXpand+ UDG : UDG-For-ZXpand / CHR$128 modJoystick : Kempston / Chroma / ZXpand+ / ZXpand-AY Sound : ZonX / Mr.X / ZXpand+ / ZXpand-AY