Bony Beetle

A Bony Beetle is the skeleton version of a Buzzy Beetle in Super Mario World. They walk around, stop, then stick out spikes. They also are immune to Fireballs, so timing is critical. Bony Beetles were first seen in the corridors of Ludwig von Koopa's castle.

They are later seen in Paper Mario in an underground section of Bowser's Castle (and several other places), with a complete makeover, resembling gray Spinies with yellow spikes, making it unclear whither it is a dead Buzzy Beetle, dead Spiny, or just a different type of enemy. They're defeated basically the same way as Dry Bones, but harder, so the player should whack them with the Hammer often when fighting them. They would engage battle with Mario by trying to ram him to knock him off guard.

By scanning a certain e-Reader card, Bony Beetles can be found in the game Super Mario Advance 4: Super Mario Bros. 3 in the level, Swinging Bars of Doom.