Here's a nifty little handheld from Coleco, who seems to have been ressurected in recent months. However the device in fact has 20 games from the 8 bit Sega Master System instead of games from Coleco's own classic game system. They must have them on liscence or something as it states on the box that Sega is not affiliated with this handheld. The console has TV out in addition to it's own small color screen. There is also a white version of this handheld.
Included games:
Sonic Drift 2
Sonic Triple Trouble
Alex Kidd in High Tech World
Alex Kidd in Miracle World
Altered Beast
Assault City
Astro Warrior
Aztec Adventure
Bomber Raid
Columns
Ecco II: The Tides of Time
Fantasy Zone
Fantasy Zone: The Maze
Global Defense
Kung Fu Kid
The Ninja
Penguin Land
Quartet
Snail Maze
Super Columns
More information and a first hand look at this console can be found at the Atariage forums here.