Three flat monsters with strange inscriptions on their bodies and ugly, grouchy faces. Its inscriptions and coloration possibly link it to Antero or Magic.

Etymology Edit

Mahjong is a game involving stacked tiles that originated in China but is also popular in Japan and Korea.


Game Name Description Image
Monster Rancher 4 MahjongKoro "This monster is covered with writing, but not even the most renowned scholars can decipher it. Its name comes from the three words "dai," "san" and "gen" on its body."
Monster Farm DS Mahjong Colo MahjongKoro MFDS
Monster Rancher DS Mahjong Colo "As of yet, no scholars have been able to translate the inscriptions on its back. They resemble Mahjong tiles though, hence the name they have been given." MahjongKoro MRDS
My Monster Rancher Mahjong Colo "They look remarkably similar to Mahjong tiles, and will often disguise themselves as actual tiles as a trick. Unfortunately if someone puts them away in the box with the game, they are unable to escape." MahjongKoro MMR


  • To obtain a MahjongKoro in Monster Rancher 4, use either the PS2 game Tony Hawk's Pro Skater 4, or Brittany Spears: Brittany CD.
  • To obtain a MahjongKoro in Monster Farm DS, use
  • To obtain a Mahjongcolo in Monster Rancher DS, use
  • To obtain a Mahjongcolo in My Monster Rancher, use

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