This is a really cool idea!! The feedback loop of bumping into a ghost -> becoming more out of control -> bumping into more ghosts is really fun. The level design was great too, the moment I figured out that I needed to time my jumps was really satisfying. One thing that caught me off guard at first was the heartrate slowing down and messing up the timing of my jumps, but once you get used to it it's a really fun extra challenge.
Really enjoyed this and I definitely want to keep coming back until I manage to get to the end!