I liked how you freeze when the lights are on, I played a similar game in the jam where you continued moving while seeing the world and it was very difficult. It is a bit jarring to see your character disappear though, so maybe the player is always visible or is there as an outline?
I also felt like the movement needed some fine tuning. Due to the slow acceleration and the slippery floors precise jumps were too difficult. I either slid off a platform when I wanted to stop, or I couldn't stop moving right otherwise I wouldn't be able to get back up to speed.