I really like this one. The character design is particularly great - reminiscent of Journey - and I especially love the ledge grab. Generally the minimal art style works well, however there are times when there isn't enough contrast between the character and the floor or the floor of the platform you're on and the floor below. This is especially noticeable in the starting area but eases up once you get other types of floors. Using treadmills to open doors and control platforms is quirky and cool.
The character controller feels good to me and you can get into a nice flow state in some of the areas that feels great. I like the idea of the abilities all being variations on the sprint and this fits the theme really well.
The music is very chill and minimalist but maybe there could be some more sounds and what's there could be mixed a bit higher.
There seems to be no way to arbitrarily recapture the mouse and there's an issue on Firefox where the camera constantly moves (but this does not effect Chrome).
Generally a great jam game that I would be interested to see developed further.