9999_in_1_(Multi)[Unknown][Super_Mario_00][d_1] pass 1

game
  crc: 4fa1fa35
  title: 9999_in_1_(Multi)[Unknown][Super_Mario_00][d_1]
  board: 212
    memory
      type: ROM
      size: 0x20000
      content: Program
    memory
      type: ROM
      size: 0x10000
      content: Character

E: Mapper: 212

ERROR:  Unsupported mapper


9999_in_1_(Multi)[Unknown][Super_Mario_00][d_1] pass 2

game
  crc: 4fa1fa35
  title: 9999_in_1_(Multi)[Unknown][Super_Mario_00][d_1]
  board: 212
    memory
      type: ROM
      size: 0x20000
      content: Program
    memory
      type: ROM
      size: 0x10000
      content: Character

E: Mapper: 212

ERROR:  Unsupported mapper


9999_in_1_(Multi)[Unknown][Super_Mario_00][d_1] pass 3

game
  crc: 4fa1fa35
  title: 9999_in_1_(Multi)[Unknown][Super_Mario_00][d_1]
  board: 212
    memory
      type: ROM
      size: 0x20000
      content: Program
    memory
      type: ROM
      size: 0x10000
      content: Character

E: Mapper: 212

ERROR:  Unsupported mapper