In addition to VGM, another of my hobbies is watching video game speedruns, where a player will try to beat the game as quickly as possible. Basically, for any game that popular, there will be a community of speed runners who try to push the world record time as low as possible.
If you've never watched and speedruns, it so happens that the biggest speedrun "convention" is happening all this week. A ton of games are being run, and you can watch them all here on twitch:
Here's the schedule of games being played (it's on 24 hours a day):