Nice atmosphere! There's a sense of impending doom. I like how, instead of hopping between lanes like you usually do in these types of runners, in this one you had to hop as little as possible. It was also satisfying to catch a heart and upgrade my hopping power.
The first 2 times I immediately got 5 obstacles in a column, impossible to pass, but on third try I got a normal run.
Congrats on your first finished game!