Mr. Mosquito is the villain from Ricky Ricotta's Mighty Robot vs. The Mutant Mosquitoes from Mercury.
Ricky Ricotta's Giant Robot vs. the Mutant Mosquitoes from Mercury
Mr. Mosquito hates living on Mercury for many reasons: On Mercury's hot days, his flip-flops melt before he can walk, and on the cold days, his toothpaste gets frozen solid. That's when he decides to take over Earth.
Mr. Mosquito clips his fingernails and zaps them with a powerful ray, turning them into giant mutant mosquitoes. He rallies them to conquer Earth and they attack Squeakyville. Ricky Ricotta and his giant robot rush to save the city, but the mosquitoes attack the robot. Luckily, the robot grabs a giant can of bug spray from a factory and sprays the mosquitoes, then chases them out into space.
But Mr. Mosquito doesn't stop there. He captures Ricky and chains him up in his spaceship, then turns it into a huge mecha-mosquito and beats up the robot. As he is unwilling to risk harming his friend, he finds himself fighting a losing battle.
Fearing for his friend's life, Ricky asks Mr. Mosquito if he can use the bathroom, which the evil alien reluctantly lets him do. Secretly, Ricky escapes and this gives the robot enough time to fight the mecha-mosquito and bring it down.
Defeated, Mr. Mosquito bursts into tears and Ricky tells him off. Afterwards, Mr. Mosquito is shut away in the Squeakyville jail.