Shady Koopa

A Shady Koopa is a Koopa Troopa with a blue shell and slightly darker colouration of skin. They appear in Paper Mario: The Thousand-Year Door, firstly as one of Mario's opponents in the Glitz Pit, along with a Shady Paratroopa and secondly in the Pit of 100 Trials. They can attack even when turned on their shell.