Goombario

"Grammatically incorrect."

- Goombario

Goombario is a member of The Party in Paper Chill. He is involved in a joke where he will pop-up and criticize somebody for not using proper grammar.

Paper Chill
He meets Chill after he wakes up. Later he joins his party without warning, or asking to join.

Spies Around The World
Goombario does his grammar joke but Chill nearly ends his game.