Use WASD or arrow keys to move. Every time you cross the yellow line, a new ball tracing your previous movements will appear. Your aim is to repeat the level again and again and avoid being caught by your past! Watch out! The level is not the same every time! If you die, the time will rewind for 3 seconds. You lose when you touch your past.
Platformer engine is taken from Perfect Platformer by Wes64test https://scratch.mit.edu/projects/2864915/ Updates: Apr 23, 2020 - Added fog that chases you so that you can no longer stall for too long.