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 B.G.M.: Best Game Music [08] - OutRun [Sega Saturn], B.G.M.: Best Game Music [01] - Nekketsu Kakutou Densetsu [NES]