Grindels are enemies that debut in Super Mario 64. They appear as mummified Thwomps, each with a pair of small round eyes and a grin on its face (hence the name). Compared to Thwomps in the same game, they are a more perfect cube shape and appear to be made of a darker, metallic stone under their wraps.
Source: https://www.mariowiki.com/Grindel
Yes I read the /j
