Crazy Koopa was a character and enemy who appeared in SMG4's video "Shell Shocked". He was at first a dead Dry Bones that SMG3 revived with the help of a special machine in his Secret Evil Lair. After he came back to life, the Koopa became shell-thirsty and started to steal a numerous amount of shells other Koopa Troopas owned by stuffing them in a bag, including Bowser's. The latter then tried to stop him with the help of Mario and his friends, but things didn't go too well. The Crazy Koopa finally won the battle, but got shot a few seconds later by an enraged Dr. Eggman for putting his club, Club Pingas, on fire.

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