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 Smash 4 Wii U Tourney Mode - 1v1 Custom Glory - Small, Super Smash Bros. for Wii U: Stage Builder - Tetris Themed Stage, Super Smash Bros. For Wii U; Custom Stage - Team Magma Symbol