Das Geheimnis der Happy Hippo-Insel
Game Boy Color · 2001
About this game
Das Geheimnis der Happy Hippo Insel ("The Secret of Happy Hippo Island") is based on the Happy Hippo toy figures hidden in the "Kinder Überraschung" ("Kinder Surprise" outside of Germany) chocolate eggs by Italian manufacturer Ferrero.
The game is a platformer spiced up with a few mini games and clearly targeted at younger children.
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You play Max Mutig ("Max Courageous") and must find out why the Volcano on Happy Hippo Island has suddenly become active again.
An important element of the game is collecting water drops and putting out the fires that result from the volcanic eruption.
On your way to the volcano you meet several of your Hippo friends who will teach you new skills such as climbing, diving and throwing nuts at dangerous animals.
The game is divided into six areas that consists of three levels each.
It is not possible to save the game; instead you get a password after completing each three-level area.
This password allows you to start the game at this point later.
About Game Boy Color
The Game Boy Color (1998) added a color screen to the original Game Boy formula while remaining backwards compatible with the entire existing cartridge library. Its colorful, semi-transparent cartridge shells make it a visually distinct platform for shelf collectors, and several late-cycle exclusives — released just before the Game Boy Advance took over — are notably harder to find complete today.
Gamevaro tracks Das Geheimnis der Happy Hippo-Insel for Game Boy Color 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 Das Geheimnis der Happy Hippo-Insel 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 GBC release dates back to 2001.
Price history
Market values by condition
PAL
Recent sales
| Date | Type | Region | Price |
|---|---|---|---|
| 2026-07-12 | Manual Only | PAL | €17.34 |
| 2026-07-12 | Item only | PAL | €11.27 |
| 2026-07-12 | Complete in Box | PAL | €69.33 |
| 2026-07-12 | New (sealed) | PAL | €111.11 |
| 2026-07-12 | Graded New | PAL | €122.22 |
| 2026-07-12 | Box Only | PAL | €27.74 |
| 2026-07-10 | Item only | PAL | €11.26 |
| 2026-07-10 | Complete in Box | PAL | €69.30 |
| 2026-07-10 | Manual Only | PAL | €17.33 |
| 2026-07-10 | New (sealed) | PAL | €111.06 |
| 2026-07-10 | Box Only | PAL | €27.73 |
| 2026-07-10 | Graded New | PAL | €122.17 |
| 2026-07-08 | Item only | PAL | €18.95 |
| 2026-06-18 | Box Only | PAL | €27.38 |
| 2026-06-18 | Item only | PAL | €11.11 |
| 2026-06-18 | New (sealed) | PAL | €109.54 |
| 2026-06-18 | Graded New | PAL | €120.49 |
| 2026-06-18 | Manual Only | PAL | €17.11 |
| 2026-06-18 | Complete in Box | PAL | €68.41 |
| 2026-06-08 | Box Only | PAL | €27.28 |
| 2026-06-08 | Item only | PAL | €11.07 |
| 2026-06-08 | Manual Only | PAL | €17.05 |
| 2026-06-08 | New (sealed) | PAL | €109.11 |
| 2026-06-08 | Graded New | PAL | €120.02 |
| 2026-06-08 | Complete in Box | PAL | €68.17 |
| 2026-05-17 | Manual Only | PAL | €17.00 |
| 2026-05-17 | New (sealed) | PAL | €108.68 |
| 2026-05-17 | Graded New | PAL | €119.54 |
| 2026-05-17 | Box Only | PAL | €27.20 |
| 2026-05-17 | Item only | PAL | €11.02 |
Market insights
Rarity & condition
Das Geheimnis der Happy Hippo-Insel 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 Das Geheimnis der Happy Hippo-Insel worth?
Das Geheimnis der Happy Hippo-Insel for Game Boy Color is currently worth €18.95 loose, €69.33 complete in box, and €111.11 factory sealed. Prices are based on real sales and update regularly on Gamevaro.
Is Das Geheimnis der Happy Hippo-Insel rare?
Das Geheimnis der Happy Hippo-Insel 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 Das Geheimnis der Happy Hippo-Insel?
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 Das Geheimnis der Happy Hippo-Insel, loose is €18.95 and CIB is €69.33 — CIB commands a premium because original boxes and manuals are fragile and often don't survive.
Ratings & Reviews
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