#8 Gizmondo
Manufactured by Tiger Telematics is a Swedish electronics company that released the failed gaming handheld Gizmondo. The device was released in 2005 and actually developed to compete against Nintendo and Sony. There was also a fair amount of decent video games being developed or was in-production before ultimately being killed off. Some of these titles include FIFA Soccer 2005, SSX 3 and even a port of Halo: Combat Evolved.
#7 Sega Genesis Portable Player
This may not be a knockoff but you may not already know about this portable console. The Sega Genesis Portable Player has had a number of releases over the years. This console is about the size of a Nintendo Game Boy Micro where gamers can go through a number of different Sega Genesis video games.
Most of the iconic titles from the console are present such as Mortal Kombat, Phantasy Star, Virtual Fighter 2, and Sonic the Hedgehog. Gamers could also connect the device to a TV and play Sega Genesis games without using the 2.8” LCD display.