8_in_1_(Multi)[Unknown][Ninja_Gaiden_1] pass 1

game
  crc: 5f532668
  title: 8_in_1_(Multi)[Unknown][Ninja_Gaiden_1]
  board: 52
    memory
      type: ROM
      size: 0x100000
      content: Program
    memory
      type: ROM
      size: 0x100000
      content: Character

E: Mapper: 52

ERROR:  Unsupported mapper


8_in_1_(Multi)[Unknown][Ninja_Gaiden_1] pass 2

game
  crc: 5f532668
  title: 8_in_1_(Multi)[Unknown][Ninja_Gaiden_1]
  board: 52
    memory
      type: ROM
      size: 0x100000
      content: Program
    memory
      type: ROM
      size: 0x100000
      content: Character

E: Mapper: 52

ERROR:  Unsupported mapper


8_in_1_(Multi)[Unknown][Ninja_Gaiden_1] pass 3

game
  crc: 5f532668
  title: 8_in_1_(Multi)[Unknown][Ninja_Gaiden_1]
  board: 52
    memory
      type: ROM
      size: 0x100000
      content: Program
    memory
      type: ROM
      size: 0x100000
      content: Character

E: Mapper: 52

ERROR:  Unsupported mapper