Impossible_Mission_(Unl)[Nice_Code][Atari_2600_Port] pass 1

game
  crc: 956ad36e
  title: Impossible_Mission_(Unl)[Nice_Code][Atari_2600_Port]
  board: 256
    memory
      type: ROM
      size: 0x10000
      content: Program
    memory
      type: ROM
      size: 0x10000
      content: Character

E: Mapper: 256

ERROR:  Unsupported mapper


Impossible_Mission_(Unl)[Nice_Code][Atari_2600_Port] pass 2

game
  crc: 956ad36e
  title: Impossible_Mission_(Unl)[Nice_Code][Atari_2600_Port]
  board: 256
    memory
      type: ROM
      size: 0x10000
      content: Program
    memory
      type: ROM
      size: 0x10000
      content: Character

E: Mapper: 256

ERROR:  Unsupported mapper


Impossible_Mission_(Unl)[Nice_Code][Atari_2600_Port] pass 3

game
  crc: 956ad36e
  title: Impossible_Mission_(Unl)[Nice_Code][Atari_2600_Port]
  board: 256
    memory
      type: ROM
      size: 0x10000
      content: Program
    memory
      type: ROM
      size: 0x10000
      content: Character

E: Mapper: 256

ERROR:  Unsupported mapper