Monster Mayhem: Build and Battle
Nintendo Wii · 2009
About this game
Monster Mayhem: Build and Battle is a trainer game where the player creates and customises a monster using a variety of components and colors.
Once built the player navigates their monster through a city from a bird's-eye view seeking ingredients to create tonics and consuming the Gruffins; small rabbit-like creatures that boost the character's statistics when eaten.
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The main exploration area has several battle arenas placed around the edge of the map where enemy monsters will spawn intermittently.
Entering these battle arenas while a monster is present changes the perspective to a one-on-one fighting game shown from a side view.
Battles are resolved via a rock, paper, scissors combat system with the addition of tonics to perform special attacks.
The Wii version of the game supports motion controls to increase the power of the attacks.
About Nintendo Wii
Launched in 2006, the Wii's motion controls (Wii Remote) brought casual and non-traditional players into console gaming at a scale no prior system had achieved, making it one of the best-selling consoles ever. Because so many Wii units sold with bundled software like Wii Sports, the bulk of the library is inexpensive to collect — but it also means truly rare Wii titles (often niche Japanese-only releases) stand out sharply from the norm.
Gamevaro tracks Monster Mayhem: Build and Battle for Nintendo Wii 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 Monster Mayhem: Build and Battle 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 WII release dates back to 2009.
Price history
Market values by condition
NTSC-U
Recent sales
| Date | Type | Region | Price |
|---|---|---|---|
| 2026-07-12 | Graded New | NTSC-U | €17.32 |
| 2026-07-12 | Manual Only | NTSC-U | €2.10 |
| 2026-07-12 | New (sealed) | NTSC-U | €15.75 |
| 2026-07-12 | Box Only | NTSC-U | €3.36 |
| 2026-07-12 | Complete in Box | NTSC-U | €8.04 |
| 2026-07-12 | Item only | NTSC-U | €3.65 |
| 2026-07-11 | Item only | NTSC-U | €6.10 |
| 2026-07-10 | Graded New | NTSC-U | €18.28 |
| 2026-07-10 | Box Only | NTSC-U | €3.40 |
| 2026-07-10 | Item only | NTSC-U | €3.65 |
| 2026-07-10 | Manual Only | NTSC-U | €2.13 |
| 2026-07-10 | Complete in Box | NTSC-U | €8.39 |
| 2026-07-10 | New (sealed) | NTSC-U | €16.62 |
| 2026-06-18 | New (sealed) | NTSC-U | €17.25 |
| 2026-06-18 | Box Only | NTSC-U | €3.38 |
| 2026-06-18 | Graded New | NTSC-U | €18.98 |
| 2026-06-18 | Manual Only | NTSC-U | €2.11 |
| 2026-06-18 | Item only | NTSC-U | €3.60 |
| 2026-06-18 | Complete in Box | NTSC-U | €8.42 |
| 2026-06-17 | Item only | NTSC-U | €3.60 |
| 2026-06-17 | Box Only | NTSC-U | €3.38 |
| 2026-06-17 | Graded New | NTSC-U | €18.98 |
| 2026-06-17 | New (sealed) | NTSC-U | €17.25 |
| 2026-06-17 | Manual Only | NTSC-U | €2.11 |
| 2026-06-17 | Complete in Box | NTSC-U | €8.42 |
| 2026-06-15 | Item only | NTSC-U | €3.61 |
| 2026-06-15 | New (sealed) | NTSC-U | €17.29 |
| 2026-06-15 | Box Only | NTSC-U | €3.39 |
| 2026-06-15 | Graded New | NTSC-U | €19.02 |
| 2026-06-15 | Complete in Box | NTSC-U | €8.44 |
Market insights
Rarity & condition
Monster Mayhem: Build and Battle 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 Monster Mayhem: Build and Battle worth?
Monster Mayhem: Build and Battle for Nintendo Wii is currently worth €6.10 loose, €8.04 complete in box, and €15.75 factory sealed. Prices are based on real sales and update regularly on Gamevaro.
Is Monster Mayhem: Build and Battle rare?
Monster Mayhem: Build and Battle 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 Monster Mayhem: Build and Battle?
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 Monster Mayhem: Build and Battle, loose is €6.10 and CIB is €8.04 — CIB commands a premium because original boxes and manuals are fragile and often don't survive.
Ratings & Reviews
Also on other platforms
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