Category talk:Super Mario enemies

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This might be a dumb question, but how do we know that all of these enemies are a part of the Koopa Troop and aren't just creatures that happen to be hostile to Mario and co.?
 * Wow, this category's a mess. It's basically just "Category:Mario Enemies" with a misleading name. Niiue (talk) 02:46, 14 December 2015 (EST)