Noooses (ノーーズ) are birds resembling their namesake from Mario & Luigi RPG 3!!!. Noooses have two forms. One has a red comb and wings resembling Mario's mustache, while the other has a green comb and wings resembling Luigi's mustache. A given Nooose can switch between the two forms. They attack by farting at Mario or Luigi. Like Mario and Luigi, they also have a Bros. Attack. A red Nooose gets on top of a green Nooose and jumps into the air. It then flies to Mario and tries to land on him. Sometimes he farts to float up, making Mario use his hammer too early. Afterward, the green Nooose will attempt to charge Luigi. Noooses can also begin singing during battle to summon allies.
A Nooose is one of the enemies that can be summoned by Garakuta Monster. Its color indicates which of the Mario Brothers it will attack.