James 'Buster' Douglas Knock Out Boxing
Sega Master System · 1990
About this game
Final Blow is an action game based around the sport of boxing.
You can play the fighters in a sequence of knock-out competitions, (the computer versions also include a round-robin league).
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Rounds last one minute, with a short break in between them.
As in the real sport, your aim is to knock your opponent down for 10 seconds, by gradually weakening him with a series of punches.
You can block punches, to avoid them inflicting damage onto you.
The ring is of a limited size, so players can be cornered, although the referee will intervene to break the boxers up if they become entangled in a stalemate position.
About Sega Master System
The Sega Master System (1985/1986) was Sega's answer to the NES and, while it lost the console war in North America, became genuinely dominant in markets like Brazil and parts of Europe. That regional split matters for collectors: PAL and Brazilian-market cartridges can differ meaningfully in scarcity and pricing from their North American counterparts for the same title.
Gamevaro tracks James 'Buster' Douglas Knock Out Boxing for Sega Master System 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 James 'Buster' Douglas Knock Out 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 SMS release dates back to 1990.
Market values by condition
NTSC-U
Recent sales
| Date | Type | Region | Price |
|---|---|---|---|
| 2026-07-17 | Loose / Item only | NTSC-U | €392.42 |
Rarity & condition
Only a handful of market sales have been tracked for James 'Buster' Douglas Knock Out Boxing, suggesting it doesn't trade hands very often — a sign of relative scarcity compared to more common Sega Master System 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.
Frequently asked questions
How much is James 'Buster' Douglas Knock Out Boxing worth?
James 'Buster' Douglas Knock Out Boxing for Sega Master System is currently worth €392.42 loose. Prices are based on real sales and update regularly on Gamevaro.
Is James 'Buster' Douglas Knock Out Boxing rare?
James 'Buster' Douglas Knock Out Boxing has only a handful of tracked market sales, suggesting relative scarcity compared to more common Sega Master System titles.
What's the difference between loose, CIB and sealed for James 'Buster' Douglas Knock Out Boxing?
Loose means cartridge or disc only, CIB (complete in box) includes the original box and manual, and sealed means factory-sealed and never opened. These are tracked as separate market values because the price gap between them can be significant, especially for older releases.