In fact, Jimmy has been banned from the science fair for life to give normal kids an actual chance. In a number of episodes, his classmates are annoyed and angered because Jimmy's brilliance renders trying to win science projects and competitions things pointless. He specializes in many sciences such as quantum physics, chemistry, biology, mathematics, robotics, engineering, and astronomy. of 210, making him the smartest Retroville citizen and quite possibly the smartest individual in the whole world. A picture of him in this outfit can be seen several times in the show. In the pilot, he wore a striped shirt, brown shoes and blue shorts. He also wears a blue lab coat (and sometimes his welding mask while working on his inventions). In the shorts and the film, Jimmy wore violet-blue shorts and brown shoes. His underwear consists of plaid boxer shorts, as shown in the film and in the first episode of the series, he wears knee socks. He also wears blue jeans and a pair of grey and white sneakers. Jimmy's wardrobe consists almost exclusively of red T-shirts that sport his trademark symbol of electrons, circling a nucleus. He is often teased because he is shorter than most of the kids his age and the youngest student in his class. Jimmy has a large forehead (which appears to be larger, due to his hair), blue eyes, and a large brown cowlick hairstyle. He is voiced by Debi Derryberry who also voiced Coco Bandicoot, Pac-Man in Street Fighter X Tekken, Runt, Jay-Jay the Jet Plane, and Zatch Bell.

Jimmy also hates being short and usually gets mad when he's reminded of it. He also loves having adventures with his best friends Carl, Sheen, Nick, Cindy, Libby, and Goddard and fighting Villains.

He has an IQ of 210, making him the most intelligent resident of Retroville. Goddard (a pioneer in modern rocketry) and his parents, Hugh, a bumbling, goofy car salesman and duck-lover, and Judy who is his mother. He lives in Retroville with his robot dog, Goddard, who is named after Robert H. Jimmy is a genius inventor, but most of his inventions seem to cause more destruction than anything and it is usually up to him and his friends to stop them. Isaac Newton, and James Chadwick who was nicknamed 'Jimmy Neutron', because of his discovery of the neutron. James Isaac 'Jimmy' Neutron (born March 14th) is the titular protagonist of the animated Nickelodeon franchise of the same name. ~ Jimmy Neutron whilst fighting the Yolkians. You steal my parents, you threaten my dog, you attack my friends and you made fun of my size.

Jimmy eutron meme