Manufacturer: SNK Released: 1999 Units sold: 2 million (incl. non-color version) CPU: Toshiba TLCS900H @ 6.144 MHz + Zilog Z80 @ 3.072 MHz RAM: 12 KB for 900H + 4 KB for Z80 ROM: 64 KB Resolution: 160×152 pixels, 146 colors Media: Cartridge, 4 MB max.