Michelangelo is one of the four main Ninja Turtles brothers and is the most lighthearted and unstable of the bunch. He often plays tricks on the other brothers and has an insatiable appetite for pizza.
Michelangelo is known for his love of pizza and innocent comic relief. He loves to skateboard, surf and party. Michelangelo has a free-spirited character, with a hopelessly innocent and romantic heart. When he meets Kala, the Neutrino girl from Dimension X, he develops a crush on her which is reciprocated. He is sometimes seen preparing meals for the group. Michelangelo is often the target of Raphael's scorn and there is a recurrent theme of him exceeding the low expectations that others have of him.
In two episodes, Michelangelo assists a superhero he admires named Bugman. He also collects comic books of his adventures and his action figures. In another, he demonstrates his ability to communicate with a pigeon named Pete.
Michelangelo was well known for his surfer lingo and the catchphrase "Cowabunga" and became perhaps the most recognizable of the turtles in the early 1990s.
Michelangelo was sometimes seen as the most empathetic with the group, connecting with a young alien in "The Starchild" despite the alien's destructive powers. Similarly, he is able to form friendships with a futuristic robot named Big Macc and the mutant outcast Mondo Gecko. This version Michelangelo later appears with a few recognizable cartoon characters in Cartoon All-Stars To The Rescue.
Mikey's personality is that of a "party dude" who adopts the lingo of a California surfer. For the most part, his default mode is light-hearted and upbeat, although there are occasions when he sulks or gets angry. Michelangelo is known to rush into situations without thinking first, often resulting in errors. However, he often surprises those around him by exceeding their expectations.