King Koopa alter egos
|Koopa Klaus||A Christmas-hating Koopa that kidnapped Santa Claus and froze his workshop.||"Koopa Klaus"||Santa Claus and Ebeneezer Scrooge|
|Koop-zilla||A giant-sized King Koopa that wreaked havoc upon New York.||"Mario Meets Koop-zilla"||Godzilla|
|King Goo-Goo-Ga-Ga Koopa||King Koopa in an outfit complete with a diaper and bib.||"Two Plumbers and a Baby"||Original|
|Darth Koopa||Darth Koopa is a form of King Koopa that appears in the episode "Star Koopa". Darth Koopa is a take on both the appearance and name of Darth Vader, a character from the Star Wars series.||"Star Koopa"||Darth Vader|
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