Action_53__Volume_4_(I_Multi)[Damian_Yerrick][2019][v_20190308][Side_B][Mega_Mountain] pass 1

game
  crc: 346ce0c6
  title: Action_53__Volume_4_(I_Multi)[Damian_Yerrick][2019][v_20190308][Side_B][Mega_Mountain]
  board: 28
    mirror: 1
    memory
      type: ROM
      size: 0x80000
      content: Program
    memory
      type: RAM
      size: 0x2000
      content: Character
      volatile

E: Mapper: 28

ERROR:  Unsupported mapper


Action_53__Volume_4_(I_Multi)[Damian_Yerrick][2019][v_20190308][Side_B][Mega_Mountain] pass 2

game
  crc: 346ce0c6
  title: Action_53__Volume_4_(I_Multi)[Damian_Yerrick][2019][v_20190308][Side_B][Mega_Mountain]
  board: 28
    mirror: 1
    memory
      type: ROM
      size: 0x80000
      content: Program
    memory
      type: RAM
      size: 0x2000
      content: Character
      volatile

E: Mapper: 28

ERROR:  Unsupported mapper


Action_53__Volume_4_(I_Multi)[Damian_Yerrick][2019][v_20190308][Side_B][Mega_Mountain] pass 3

game
  crc: 346ce0c6
  title: Action_53__Volume_4_(I_Multi)[Damian_Yerrick][2019][v_20190308][Side_B][Mega_Mountain]
  board: 28
    mirror: 1
    memory
      type: ROM
      size: 0x80000
      content: Program
    memory
      type: RAM
      size: 0x2000
      content: Character
      volatile

E: Mapper: 28

ERROR:  Unsupported mapper