12_in_1_(Multi)[Unknown][M3H12B][Super_1990_Tank] pass 1

game
  crc: 01cab83c
  title: 12_in_1_(Multi)[Unknown][M3H12B][Super_1990_Tank]
  board: 57
    mirror: 1
    memory
      type: ROM
      size: 0x20000
      content: Program
    memory
      type: ROM
      size: 0x10000
      content: Character

E: Mapper: 57

ERROR:  Unsupported mapper


12_in_1_(Multi)[Unknown][M3H12B][Super_1990_Tank] pass 2

game
  crc: 01cab83c
  title: 12_in_1_(Multi)[Unknown][M3H12B][Super_1990_Tank]
  board: 57
    mirror: 1
    memory
      type: ROM
      size: 0x20000
      content: Program
    memory
      type: ROM
      size: 0x10000
      content: Character

E: Mapper: 57

ERROR:  Unsupported mapper


12_in_1_(Multi)[Unknown][M3H12B][Super_1990_Tank] pass 3

game
  crc: 01cab83c
  title: 12_in_1_(Multi)[Unknown][M3H12B][Super_1990_Tank]
  board: 57
    mirror: 1
    memory
      type: ROM
      size: 0x20000
      content: Program
    memory
      type: ROM
      size: 0x10000
      content: Character

E: Mapper: 57

ERROR:  Unsupported mapper