Crumbcakes

These are a very common type of enemy to see in the Pixel Brains' adventure through the land of Super Mario World.

In episode 6 of the Pixel Brains Playthrough of Super Mario World Ron refers to these enemies as crumb cakes. He says this after Steve gets hit by one, "Oh, watch out for the crumb cakes"

Ron later wonders "What is crumb cake?"

Steve responds with "A cake made out of crumbs" while laughing.