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 MAGL2 - 31st place - YOSHI'S ISLAND 1 by castlepokemetroid, SMW2+ - 39 - treacherous leaves, MariAri2 - 27 - you can push boxes left (and right)