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 protect Bowser's stash by preventing all four characters from unlocking the door to the treasure chest. If a character comes in contact with one, they get stunned or drop the Bowser Key. They can be easily avoided by jumping and tossing the Bowser Key.