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Play Jimmy Neutron: Boy Genius (US edition · English) Online
Jimmy Neutron: Boy Genius
Play Jimmy Neutron: Boy Genius online and explore GBA Retroville for spaceship parts, using jumps, energy shots and a fuel-limited jetpack across item-search missions.
Browser play

Game Boy Advance (GBA) — EmulatorJS controls
Default Player 1 keyboard mapping. Change keys in Controller Settings.
| Console button | Keyboard |
|---|---|
| ↑ / ↓ / ← / → | ↑ / ↓ / ← / → |
| A / B | Z / X |
| L / R | Q / E |
| START / SELECT | Enter / V |
Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.
How to Play Jimmy Neutron: Boy Genius
Quick start
Start the adventure in front of Jimmy’s house, enter the door and accept the first mission: find the flashlights inside while avoiding the disguised Yokian in the kitchen. Search the lower rooms, climb the stairs to check the bedroom areas, collect the flashlight and return through the door. The wider objective is to explore Retroville for spaceship parts, so collect useful food and coins but prioritise the mission item before leaving.
Controls
Use Left/Right on the Control Pad to walk, Up to climb ladders, enter doors or press switches, and Down to crawl. A jumps, B fires Jimmy’s energy shot and L activates the jetpack when it is available. START pauses. R and SELECT have no function according to the GBA guide. Watch the jetpack fuel gauge and refill at yellow tanks before attempting long gaps.
Jimmy Neutron: Boy Genius Game manuals
Cheats
No cheats have been added for this edition.
Player verification and sources
Browser play was reviewed before this edition was published in the catalogue. The date below is the catalogue publication date, not the game’s original release date.
- Browser test and catalogue publication date
- Browsers and devices
- PC: Chrome, Edge and Firefox. Mobile: Chrome on Android and Safari on iPhone and iPad.
- Player engine and core
- EmulatorJS 4.3.0-pre · gba
- Tested by
- rwEmulator
Sources and editorial basis
rwEmulator reviews edition metadata, release information, game manuals and first-hand browser-play notes. Available manuals are linked below; the editorial policy explains how facts are checked and corrections are handled.