Spike Koopa

Spike Koopas are bipedal Spinies with frog-like faces and Goomba-like fangs found only in Mario Party, appearing exclusively in the minigame Key-pa-Way. Their role is to prevent all four player characters from unlocking the door to a stash of coins. If a character comes in contact with one, they get stunned or drop the key needed to unlock the door. Spike Koopas can be easily avoided by jumping and tossing the key.