Mad Mecha-Spike Top
From the Super Mario Wiki, the Mario encyclopedia
The M. M-Spike Top (short for Mad Mecha-Spike Top) is an enemy found on Vibe Island in the game Super Princess Peach. They differ from the plain Mecha-Spike Tops by possessing yellow spikes on their backs, which can extend to about three times their height, as outlined in the game's Glossary: "A dangerous foe that can stretch its spines". They are one of the few enemies in Super Princess Peach that can only be defeated by using Rage.
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