Cheat Koi-Koi

Summary

Play koi-koi against the cheats of a nighttime gambling den, matching hanafuda cards into yaku while peeking at hidden cards and swapping your hand. Get caught and you pay a fine and lose that trick for a while; win matches to pick new tricks, buy tools at the stall, and reach the den's owner Ririka.

• Matches decided on total points over several rounds
• Tricks, upgrades and tools bought between opponents
• Beating Ririka unlocks Endless mode and rule-changing challenges