From the Super Mario Wiki
Mona's Monkey (sometimes known as Mona's Chimp) is a small monkey with special goggles, and a blue shirt with a red "3" printed on. It is one of the animals owned by Mona. It first appeared, just as Mona's Elephant and Mona's Pig, in WarioWare, Inc.: Mega Microgame$!. The monkey can throw Banana Peels, and it has saved her twice in a row.
WarioWare, Inc.: Mega Microgame$!
In WarioWare, Inc.: Mega Microgame$!, the Diamond Police followed Mona because of speeding. Since Mona has to be on work at the Gelateria as fast as possible, she hasn't any time for a speeding ticket, and put her first three animals in defense. The first one was her Elephant. It shot sludge at the police cars, but more came. Next was her pig. It kicked numerous of Soccer Balls to the cars. Still, more came. Finally, her monkey came on, throwing banana peels to the police cars. After a long time, the chimp has overcome the police force, and Mona came just in time.
All three animals cheered her when Mona dismounted her scooter.
In WarioWare: Twisted!, Mona needs again help of her animals, this time to get away the Dinosaurs. To hinder her, one of the Dinosaurs had a gray T-Rex on his shoulder. The one who brought Mona's animals was Pizza Joe in an airplane. He set the animals up on Mona's cap at all in once. Mona's Monkey was at top. However, Mona's Elephant and Mona's Pig attacked first. The elephant created a soccer ball and the pig kicked the ball. The T-Rex was defeated in one hit. The Dinosaurs then appeared again with a blue dinosaur robot on wheels. The attack of Mona's two animals didn't affect the robot. Mona's Pig became angry, and put its mechanical goggles on. A long time later, the attack still didn't affect the big robot, and the goggles wore off. Then the monkey ate its banana, and threw the peel to the robot. it slipped, and was simply defeated. Again, the monkey saved her.
In WarioWare: Touched!, Mona is chased by Vanessa and the Dinosaurs. Her three animals tried to help her with Manager Joe, but has been kicked away by Vanessa's falcon-like robot. Then her newer animals, 4.1 and 4.2 appeared in a flying vehicle, and shot soccer balls to the robot.
WarioWare: Smooth Moves
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