videos in AudioSet
A list of about a million ten-second YouTube clips, each labelled with the sounds in it, that Google published in 2017. Labs use it to train and test general audio and music models.
Including Mega Man 3 37:06 Speed Run - Part 4, Mega Man X (SNES) 33:48 Speed Run - Part 2, Mega Man 6 36:45 Speed Run - Part 4