Coffee is needed! Enjoyed this simple little game. I think you did great on the UI and making things pretty clear about where and when to go to places. I think the only thing that I didn't understand first couple of times around were that the green bar at the top was my energy which affected my speed.
Once I understood that things were a bit smoother, but it was tricky figuring out the opening of when can/should I top up energy, because at some point there is a point of no return. I like that you had to fail multiple times to lose which was nice. But surfacing that to the player through UI would have been good. The timing can be pretty tight though. Last bit was figuring out the stairs collision system coming off the bottom of the stairs. Kinda have to slide an extra bit off to get off the stairs and even after a few runs I still couldn't get used to it. Tightening that up a bit would really help smooth out the movement.
Audio and SFX were good, I found the SFX on failing to be humorous.
Great job!