Cheep Diamonds (Cheepers Keepers in the British English version, not to be confused with the minigame which in the American English version falls under the same name) is a General Minigame in Mario Party: Island Tour. The American English name is a pun on "cheap diamonds." The British English name is a pun on the exclamation and 1938 song "Jeepers Creepers."
Two Cheep Chomps dive into the water, then one of them eats diamonds, then they circle around, then they jump in the water. The one that ate the diamonds reveals them and then the game begins.
The players try to guess which Cheep Chomp eats the most diamonds and they get added to the player's total. In the first round, there are four Cheep Chomps, round two has five, and six in the final round. The player that has the most diamonds after all three rounds wins.
Names in other languages