Jimmy Neutron: Boy Genius
Nintendo GameCube · 2001
About this game
The Adventures of Jimmy Neutron: Boy Genius - Attack of the Twonkies is a Game Boy Advance game based on the Nickelodeon Jimmy Neutron Halloween TV special of the same name.
In the game, Jimmy explores a comet that is passing over Retroville called Twonkus-3, where he encounters a terrifying monster.
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Upon returning home, Jimmy and his friends discover that an alien has stowed away with Jimmy.
What starts to be a cute little pet turns out to be a huge menace when Jimmy discovers that the aliens (dubbed 'Twonkies') will evolve into monstrous creatures whenever they hear different types of sounds! It's up to Jimmy to use his inventions to save the town before the Twonkies tear it apart!
About Nintendo GameCube
Nintendo's GameCube (2001) used a compact optical disc format and was the company's first console with online capability, though it never matched the PS2's commercial success. GameCube discs are comparatively durable, making complete-in-box collecting approachable, while a handful of Japan-only and limited-release titles (some tied to promotions) are the platform's genuine chase items.
Gamevaro tracks Jimmy Neutron: Boy Genius for Nintendo GameCube with separate market values for loose, complete-in-box (CIB) and factory-sealed copies, sourced from real eBay sales. Prices also vary by region — PAL, NTSC-U and NTSC-J releases of the same game often sell for different amounts due to print run sizes and regional collector demand.
Adding Jimmy Neutron: Boy Genius to a Gamevaro collection takes seconds — search by title or scan the box barcode, and the app fills in cover art, release details and current pricing automatically. This GCN release dates back to 2001.
Price history
Market values by condition
PAL
NTSC-U
Recent sales
| Date | Type | Region | Price |
|---|---|---|---|
| 2026-07-18 | Item only | NTSC-U | €12.96 |
| 2026-07-18 | New (sealed) | NTSC-U | €47.22 |
| 2026-07-18 | Box Only | NTSC-U | €6.45 |
| 2026-07-18 | Graded New | NTSC-U | €160.92 |
| 2026-07-18 | Complete in Box | NTSC-U | €16.37 |
| 2026-07-18 | Manual Only | NTSC-U | €7.95 |
| 2026-07-16 | Complete in Box | NTSC-U | €16.41 |
| 2026-07-16 | Item only | NTSC-U | €12.99 |
| 2026-07-16 | Box Only | NTSC-U | €6.47 |
| 2026-07-16 | Manual Only | NTSC-U | €7.97 |
| 2026-07-16 | New (sealed) | NTSC-U | €47.34 |
| 2026-07-16 | Graded New | NTSC-U | €161.33 |
| 2026-07-14 | Complete in Box | NTSC-U | €16.39 |
| 2026-07-14 | Graded New | NTSC-U | €161.07 |
| 2026-07-14 | Item only | NTSC-U | €12.97 |
| 2026-07-14 | Box Only | NTSC-U | €6.46 |
| 2026-07-14 | New (sealed) | NTSC-U | €47.27 |
| 2026-07-14 | Manual Only | NTSC-U | €7.96 |
| 2026-07-13 | New (sealed) | NTSC-U | €47.24 |
| 2026-07-13 | Box Only | NTSC-U | €6.46 |
| 2026-07-13 | Complete in Box | NTSC-U | €16.38 |
| 2026-07-13 | Manual Only | NTSC-U | €7.95 |
| 2026-07-13 | Graded New | NTSC-U | €160.99 |
| 2026-07-13 | Item only | NTSC-U | €12.97 |
| 2026-07-12 | Item only | NTSC-U | €12.97 |
| 2026-07-12 | Complete in Box | NTSC-U | €16.38 |
| 2026-07-12 | Box Only | NTSC-U | €6.46 |
| 2026-07-12 | Graded New | NTSC-U | €160.99 |
| 2026-07-12 | New (sealed) | NTSC-U | €47.24 |
| 2026-07-12 | Manual Only | NTSC-U | €7.95 |
Market insights
Rarity & condition
Jimmy Neutron: Boy Genius has a steady sales history on the tracked marketplaces, meaning enough copies circulate to establish a reliable market price.
Complete-in-box (CIB) copies typically command a premium over loose cartridges/discs because the original box and manual are more fragile and get discarded or damaged over time — fewer complete sets survive.
Frequently asked questions
How much is Jimmy Neutron: Boy Genius worth?
Jimmy Neutron: Boy Genius for Nintendo GameCube is currently worth €16.32 loose, €14.98 complete in box, and €41.99 factory sealed. Prices are based on real sales and update regularly on Gamevaro.
Is Jimmy Neutron: Boy Genius rare?
Jimmy Neutron: Boy Genius has a steady sales history on the tracked marketplaces, meaning it trades hands regularly and isn't considered particularly rare.
What's the difference between loose, CIB and sealed for Jimmy Neutron: Boy Genius?
Loose means cartridge or disc only, CIB (complete in box) includes the original box and manual, and sealed means factory-sealed and never opened. For Jimmy Neutron: Boy Genius, loose is €16.32 and CIB is €14.98 — CIB commands a premium because original boxes and manuals are fragile and often don't survive.
Is Jimmy Neutron: Boy Genius worth more in PAL or NTSC?
The PAL version of Jimmy Neutron: Boy Genius is currently worth €16.32 loose, versus €13.12 for NTSC-U. Regional price differences usually come down to print run size and regional collector demand.
Ratings & Reviews
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