James "Jimmy" Isaac Neutron is the main protagonist of the series and movie. His voice is Emma. He is the world's smartest 11-year-old. He is named after scientists Sir. James Isaac Newton, and James Chadwick who was nicknamed "Jimmy Neutron", because of his discovery of the neutron. He has a chocolate ice cream hair
Jimmy is a genius inventor, but his inventions seem to cause more destruction than anything and it is usually up to him and his friends to stop them. He lives in Retroville with his robot dog, Goddard, who is named after Robert H. Goddard (a pioneer in modern rocketry) and his parents, Hugh Neutron, a bumbling car salesman and duck-lover, and Judy Neutron.
Jimmy Neutron appears as a playable character in Nicktoons Unite! Jimmy had summoned the other three heroes to his lab and together they are on a missio to defeat the Syndicate. After that he sends the rest away.
- Tornado Blaster
- Shrink Ray
- Neutron Flare
- Quarterback Gear
- Shrink Ray
- Jet Pack
- Double Jump
Nicktoons: Battle for Volcano IslandEdit
Nicktoons: Attack of the ToybotsEdit
Jimmy appears as a playable character in Nicktoons: Attack of the Toybots. Jimmy Neutron was trapped somewhere inside of the factory but was eventually freed by the heroes.
Jimmy's special costume is secret Agent from the episode Mission: Rescue Jet Fusion. He attacks with an electric fly-flap.
Nicktoons: Globs of DoomEdit
Jimmy Neutron appears as a playable character in Nicktoons: Globs of Doom. Jimmy has again summoned the heroes and villains of several worlds because all of their homeworlds were infected with orange goo. Together they team up to defeat Globulous.
Jimmy's weapon is a giant head shrink ray.
Nicktoons: Toons WarsEdit
Shrink Ray is Jimmy's neutral special. Jimmy pulls out his Shrink Ray and sends a small sonar in front of him that causes the opponent to shrink for a little while (about 10 seconds) and then returns back to normal.
Goddard Scooter is Jimmy's side special. Goddard appears and he transforms into a scooter where Jimmy jumps onto. Jimmy then rides forwards and bashes into anyone in his way. He can turn around once and when turned around Goddard will stop shortly after that.
Goddard Helicopter is Jimmy's up special. Goddard appears and out of his head a small helicopter appears. Jimmy grabs onto it and will be dragged upwards. He can move slightly horizontal but not much.
Pogostic is Jimmy's down special. Jimmy pulls out his pogostick and bounces on it creating a small earth shock. The waves can be seen going over the stage and can be jumped over.
Rocket Launch is Jimmy's War Strike. Jimmy and Goddard hop into the blue rocket and launch upwards away. Then the rocket returns, crashes on the ground and creates a giant explosion. Jimmy then safetly flies down with Goddard who uses his helicopter again.
Jimmy's special costume is the secret agent based on the episode Operation: Rescue Jet Fusion. He wears this suit to look like a professional spy and that he can help Jet Fusion by getting him out of the lair of Professor Calamitous and Beautiful Gorgeous.
Enemies: Professor Calamitous, Beautiful Gorgeous
Likes: Rockets, Science
Dislikes: Getting Grounded, Wearing Nappies