Mario_7_in_1_(Multi)[Unknown][Mario_3][!] pass 1

game
  crc: b03501f2
  title: Mario_7_in_1_(Multi)[Unknown][Mario_3][!]
  board: 52
    memory
      type: ROM
      size: 0x100000
      content: Program
    memory
      type: ROM
      size: 0x100000
      content: Character

E: Mapper: 52

ERROR:  Unsupported mapper


Mario_7_in_1_(Multi)[Unknown][Mario_3][!] pass 2

game
  crc: b03501f2
  title: Mario_7_in_1_(Multi)[Unknown][Mario_3][!]
  board: 52
    memory
      type: ROM
      size: 0x100000
      content: Program
    memory
      type: ROM
      size: 0x100000
      content: Character

E: Mapper: 52

ERROR:  Unsupported mapper


Mario_7_in_1_(Multi)[Unknown][Mario_3][!] pass 3

game
  crc: b03501f2
  title: Mario_7_in_1_(Multi)[Unknown][Mario_3][!]
  board: 52
    memory
      type: ROM
      size: 0x100000
      content: Program
    memory
      type: ROM
      size: 0x100000
      content: Character

E: Mapper: 52

ERROR:  Unsupported mapper