Meet the Beetles!
The black one is Buzzy Beetle, a bug with a very hard shell that is fireproof. Sometimes they walk on ceiling.
The flying one is the Parabeetle, who is also fireproof, but Mario and Luigi can jump and ride around on it like a moving platform.
Finally, there’s Buster Beetle, who is much faster and can pick up and throw blocks, but is not fireproof.
Today was the first time I edited one of these Ink Drawing Challenge images in Photoshop — I moved the Parabeetle down so there would be less space between the three. But I didn’t actually alter the drawings themselves in any way, so I figure that’s fine.