Koopa

Koopa (formally known as Joseph from SML) is a green shelled turtle-like koopa who with the king of koopas, Bowser from the Super Mario franchise by Nintendo.

Plot
Koopa was first appeared in Episode 47: Dark is Darkness (Halloween Special) as a trick-or-treater with Toad and Koopa Paratroopa, and then they got scared away by Prank-Bear.

Trivia

 * Pros: Shell, candy, Halloween, and video games
 * Cons: Losing his shell.