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 Super Smash Bros. Brawl Battle #101: Mario vs Wario, Super Smash Bros. Brawl Battle #4: Pikachu vs. Pokemon Trainer vs. Lucario vs. Jigglypuff, Super Smash Bros. Brawl Battle #49: Bowser vs. Ike