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 MapleStory Skill Quest - How to obtain "Rush" [Before Big Bang Patch], Wario Ware Smooth Moves Walkthrough Part 5 - Dancing Cat MADNESS!, Borderlands 2 - Sound effects: Constructor's Digistruct