64_in_1_(Multi)[Unknown][Mario][!] pass 1

game
  crc: c9394951
  title: 64_in_1_(Multi)[Unknown][Mario][!]
  board: 204
    memory
      type: ROM
      size: 0x20000
      content: Program
    memory
      type: ROM
      size: 0xe000
      content: Character

E: Mapper: 204

ERROR:  Unsupported mapper


64_in_1_(Multi)[Unknown][Mario][!] pass 2

game
  crc: c9394951
  title: 64_in_1_(Multi)[Unknown][Mario][!]
  board: 204
    memory
      type: ROM
      size: 0x20000
      content: Program
    memory
      type: ROM
      size: 0xe000
      content: Character

E: Mapper: 204

ERROR:  Unsupported mapper


64_in_1_(Multi)[Unknown][Mario][!] pass 3

game
  crc: c9394951
  title: 64_in_1_(Multi)[Unknown][Mario][!]
  board: 204
    memory
      type: ROM
      size: 0x20000
      content: Program
    memory
      type: ROM
      size: 0xe000
      content: Character

E: Mapper: 204

ERROR:  Unsupported mapper