What physical injury was commonly associated with playing the original Mario Party?

The physical injury commonly associated with playing the original Mario Party was blisters on the palms.

Several minigames in the 1998 Nintendo 64 game required players to rotate the controller's analog stick as quickly as possible. Many players discovered that pressing and spinning the stick with the palm was faster than using a thumb, but the controller's small, hard stick could scrape the skin. Reported injuries included blisters, friction burns, and lacerations.

The problem became serious enough to attract roughly 90 complaints to the New York attorney general's office. Nintendo ultimately agreed to provide protective gaming gloves and pay $75,000 in legal fees. The company reportedly prepared for up to 1.2 million glove requests, although the actual cost was never necessarily that high.

The episode became one of the most memorable controversies in the series. Later releases, including Mario Party Superstars and Nintendo Switch Online versions, added warnings telling players not to use their palms for stick-rotation minigames.