Nitro Rad -> Great channel with a lot of interesting gaming stuff. Lots of Platformers, Horror, Indie games, and oddball stuff!
Cornshaq -> This is such an oldschool channel, but it he has an insane amount of content. It's a real shame he doesn't get more views with all the work he's put into his channel. He's almost done a deathless "play it through" of every single NES game licensed and unlicensed!
Kaze Emanuar -> The god of hacking Super Mario 64. He literally makes a living doing this, and his work is incredible! You can play all his stuff for free as well! Some co-op 2 player Super Mario 64 on real hardware anyone?
Sucker Pinch -> Does some crazy coding and modding stuff sometimes with old NES stuff. Wanna see an AI learn to play NES games? How about reverse emulating the NES? It gets overly complicated and weird! Also lots of dry humor here.
Pikasprey - > He does a lot of soft lock picking in Pokemon games along with reviews of Castlevania, indie games(horror and RPG), and reviews of lots of bad fan stuff. He has another channel for his lets plays called "Pikasprey Blue". This channel is "Pikasprey Yellow".