Gets weird at 105 when the player decides to fall off the map, https://youtu.be/XERN5eNWptI?t=65
Score only goes up when you're on solid ground, so the idea is to make cool looking recoveries after falling off, and land them with style. :)
This is a time-tested strategy for simple procedural "endless" games, starting with Adam Saltsman's Canabalt in 2009, and one of this game's inspirations, Terry Cavanagh's Super Hexagon from 2012.