Catterwall is Orbulon's microgame in WarioWare, Inc.: Mega Microgame$! in the IQ folder and returns in WarioWare Gold as Mona's microgame. The name is a pun of "caterwaul" an idiom for a person or animal making a terrible sound.
The objective is to find the cat among the cats. The picture is at the bottom-right corner for the targeted cat. It takes place outside during night. Cats are idle.
- 1st level difficulty: There are six cats.
- 2nd level difficulty: There are eight cats.
- 3rd level difficulty: There are ten cats.
The microgame belongs to Mona in the Mash League in the That's Life theme. The place is changed that it takes place inside a store. Some cats are active.