User:Rodmjorgeh/List of mainline Super Mario enemies that made only one appearance

This is a list of enemies that made a first appearance in a Super Mario game, and were never brought back in any other game, even outside of the Super Mario series. Cameos and remasters of these games don't count as new appearances.

With this in mind, here's the statistics on said enemies:

Keep in mind, it's not really fair to compare Super Mario Odyssey to older games as it was the last 3D mainline Super Mario game released, therefore it's harder for enemies that work well in a 3D space to appear in other 2D games. Super Mario Bros. Wonder is not included at all in this list for the obvious reason that it is the last Super Mario game released.