megafenix on 20 February 2015
dark link from zelda 2, the joker from that batman nes game, the final three forms of the boss on ninja gaiden, man is he hard
https://www.youtube.com/watch?v=gGQ3SQSRoPI
https://www.youtube.com/watch?v=vswEyqq7PuQ
battle toads is really hard and never made it to the final boss
and talking about hard bosses, here is a list of really hard games from Angry Video Game Nerd
https://www.youtube.com/watch?v=rRW90lKwz4M
