K.O.: The Pro Boxing

Regular boxing matches are practiced and live competitions are held in the Chiba Gym.

The player can do single matches picking one out of eight predefined characters, or do the tournament mode using a character with a custom name, face, trunks, and stats.

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 K.O.: The Pro Boxing 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 K.O.: The Pro Boxing 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 2000.

Only a handful of market sales have been tracked for K.O.: The Pro Boxing, suggesting it doesn't trade hands very often — a sign of relative scarcity compared to more common Game Boy Color titles.

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.

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