Line Rider is a web browser game where you draw a line (or series of lines) and then watch a little guy in a sledge ride down it.
However, some people have turned Line Rider into an artform, creating long and detailed tracks that must have taken months of hard graft.
This video shows one of the most impressive Line Rider tracks I have ever seen. Not only is it long and intricate, it’s synchronized with Fade by Alan Walker.
The track matches up perfectly with the song, even after the rider and sledge part ways. Which must have taken months of trial and error to achieve.