Virtual Boy.
Gameboy is one of the most successful consoles of all time and it has defeated countless competitors. Virtual Boy just totally flopped. It's easily the worst.
I know a lot of people don't even count the Virtual Boy, because it performed so badly. If you don't want to count it, then Wii U is next.
curl-6 bet me that PS5 + X|S sales would reach 56m before year end 2023 and he was right.
My Bet With curl-6
My Threads:
Master Thread, Game of the Year/Decade
Switch Will Be #1 All Time
Zelda Will Outsell Mario (Achieved)
How Much Will MH Rise sell?
My Bet With Metallox