It's Bubufubu. The guy's a real perfectionist with a temper. The guy spent seven hours on Ninja Gaiden 3 on NES trying to get out of the final stage without losing a life-- the last level has barely enough time to finish it if you do a perfect run using a few shortcuts involving the fire wheel's invincibility-- otherwise you pretty much have to die once at 7-3 to have enough time to complete the boss fight.