Rockman 3: Burst Chaser is a ROM hack of Mega Man 3 with an emphasis on speed. Mega Man himself walks and slides faster than he normally does, but his enemies also move faster as well. It also features new levels, edited enemies, different boss AI, and covered music from other video games such as Final Fantasy VII, Romancing SaGa, and Dragon Ball Z: Super Butoden. A full list of all the songs in the game can be found here.
kuja_killer in this run takes a whack at this difficult ROM hack and demonstrates deft movements and tricks with the added speed, beating it in record time.