I made this for a physics project, and it was really fun to work on, so I'll probably build more chain reactions in the future. It took me around 20 hours to build, and around 2 1/2 to get a decent take. The chain reaction starts at 2:10. Inspirations: @jackofallspades98 inspired many of the tricks, including the hotwheels one @DoodleChaos 's music syncing is always amazing, and he does do chain reactions as well @CrazyGameMaster inspired the style of my line rider track featured in this video. Check them out, some of their stuff is really crazy.

The song is Fairytails by @VyletPony