Dark Koopatrol (Super Paper Mario)
From the Super Mario Wiki
Dark Koopatrols are enemies from Super Paper Mario. Unlike the uniquely-coloured Dark Koopatrols encountered in Paper Mario: The Thousand-Year Door, these enemies are pitch-black replicas of normal Koopatrols. They are the strongest Koopas in the game, and appear solely in the Flopside Pit of 100 Trials, along with the other dark enemies.
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