Watermelon Whalin'

Watermelon Whalin' (Watermelon Whacking in the British English version) is a 1-vs.-Rivals minigame appearing in Mario Party 10. This minigame appears to be based on a traditional Japanese game, .

Gameplay
The players are at a beach, with the solo player holding a hammer and the rivals holding one watermelon each. The objective of the solo player is to whack the watermelons the rivals are holding. A rival whose watermelon gets whacked is eliminated. Rivals that lose their watermelons can still move to try to block the solo player from knocking out any other rival with a watermelon. If the solo player manages to whack all of the watermelons, they win. If at least one rival holds their watermelon for the entire 30 seconds, the rivals win.

Ending
Any winners cheer while holding up a watermelon slice while Huckit Crabs dance next to them. The losing side is also seen sulking behind the winning side.

Solo)

 * − Move
 * − Swing hammer

Rivals

 * − Move

In-game description
''Solo Player: Hit the watermelons with ! - Rivals: Run away!''