Watara Supervision: the console that tried (and failed) to compete with the Gameboy.
The Watara SuperVision is a fascinating GameBoy competitor in the early 90's : r/retrogaming
watara Travellmate handheld game system, early Supervision - VERY rare! | eBay
Retro Fan on Twitter: "A very obscure Nintendo Gameboy competitor #watara # supervision #retrogaming #retrocollecting #gameboy https://t.co/WdKMtSGQHX" / Twitter
Watara Supervision - Wikipedia
Supervision - Obsolete worlds
SUPERVISION - The forgotten Game Boy - YouTube
Probably one of the rarest systems i own in my collection, the Watara SuperVision with the Tv Link add on, any of you own or heard about this add on before :) :
The Watara SuperVision Project - All 64 SuperVision games - Every game (US/EU/JP) - YouTube