GameKing is a brand of handheld game consoles, designed and developed by Timetop and manufactured by Guangzhou Panyu Gaoming Electronics Co., Ltd, (also known as GZ Daidaixing Tec.Electronics Co., Ltd.)[1] in 2003, for the Hong Kong consumer market.

A fourth console, the Handy Game, was produced by Timetop and shares some branding, but otherwise has little to do with the GameKing franchise.

[4] It is fashioned to look like Nintendo's Game Boy Advance and comes in a wide array of vivid pastel colours,[3] either opaque or transparent, and uses two AAA size batteries.

and audio is far superior (multi-channel music and digitized samples and voices are quite common in GameKing games).

While such a scheme seems to work, it has the disadvantage of using cartridge space inefficiently, so that e.g. most platform games are limited to three levels.

Also, the GameKing II has a fixed color background picture for its LCD screen, only visible when the backlighting is switched on.

The picture may vary between various GameKing models, however it has a mostly negative effect on screen readability when the backlighting is turned on.

[3] Even though it is sequenced later than the other consoles in the Gameking line, and therefore one would expect more advanced hardware, it is in fact a redesigned Gameking II with the back-light removed (notice however that the box for the GM-221 and GM-222 both show exactly the same false color screen shot, despite the two machines vastly different capabilities).

It is not known why Timetop chose to release the GM-222 in this fashion, although renderings exist that show this design was intended at some point to be a full color model.

Some of these games found in 4-in-1 cartridges are: TimeTop quietly released a third GameKing machine, called the 'GameKing III' or GM-220 sometime in 2005.

In 2005, many websites initially reported the device as "coming soon", and it is not known why Timetop eventually decided to offer only a limited release.

While early mockups indicated this handheld was considered part of the Gameking line, Timetop eventually removed the gameking branding from this edition prior to its release, replacing it with "Timetop LTPS Handy Game" ( ironically, "handy-game" was the working title EPYX coined in 1987 for what would become the Atari Lynx).