Eyerok

Eyerock is a boss who initially appeared in Super Mario 64 for the Nintendo 64. The boss features two seperated stone hands with a single eye in the middle of each one. The goal of the battle is to attack those eyes at the right moments, though doing so will become a challenge as they'll work cooperatively to prevent Mario from doing so.

Eyerock appeared once more in the Nintendo DS video game Mario Kart DS as a boss. In the game, the player would have to shoot Green Shells in the middle of the hands in order to attack the eyes. Doing so a total of three times each would kill it.