Knockout Kings
Game Boy Color
- Region
- NTSC
- Complete
- $16
- Sales in 90 days
- 1in 90 days
- Region
- PAL
- Complete
- $6
- Sales in 90 days
- 1in 90 days
Variants
Market value
$6–$16
$6.33 and $15.99two sales
Liquidity 32 of 100
2 sold in 90 days · 5 listed now
No trend yet
sales since Oct 2026
Low confidence
2 sales, newest Oct 19 · few sales
Sales history
| Sold | Listing | Region | Edition | Condition | Price | Feedback | |
|---|---|---|---|---|---|---|---|
| Oct 19, 2026 sold after a year |
|
Knockout Kings Game Boy Color - 1999 - W/ Original Box & Manual | NTSC | Standard | Complete | $19.99 eBay · Offer accepted asking price shown | |
| Oct 16, 2026 sold in 7 days |
|
Knockout Kings Nintendo Game Boy Color PAL 1999 Boxed Complete w/ Manual | PAL | Standard | Complete |
|
|
Photos
NTSC
-
Front -
Back -
Cartridge label
PAL
-
Front -
Back -
Cartridge label
Frequently asked
How much is Knockout Kings worth on the Game Boy Color?
One complete copy has sold in NTSC (US, Canada), for $15.99 on October 19, 2026. One has sold in PAL (EU, UK, Australia), for $6.33 on October 16, 2026. A loose cartridge sells for $6 to $9.
How do I tell which copy I have?
Look at the rating badge on the front of the box.
- An ESRB box, black and white with a letter in it, means a North American copy. Canadian copies have the same front with a bilingual back.
- A PEGI square with the age in it means a European copy.
How quickly does Knockout Kings sell?
Two copies sold in the last 90 days. Five are listed right now.
How is sales data gathered?
We retrieve listing information through eBay alerts and Vinted alerts provided by GrailHound and apply image recognition and text processing to link marketplace listings to games.