From the Super Mario Wiki, the Mario encyclopedia
Spiky Gloombas (also known as Spiked Gloombas) are Gloombas with a spike on their head. Because they have a spike on their head, Mario will get hurt if he jumps on them, unless he has the Spike Shield. In Paper Mario: The Thousand-Year Door, they appear in the Pit of 100 Trials in the Rogueport Sewers. They are much tougher than a regular Spiked Goomba. This Goomba variety, along with the Hyper Spiky Goomba, is the strongest in the game.
Paper Mario: The Thousand-Year Door
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