Really enjoyed the tricuspid valve animation. I liked the concept but was thrown off at the part where I had to turn around until I eventually decided that had to be what I was supposed to do. When I got to the level that introduced the lasers I was almost done but then got stuck inside the red lock and the game froze. Jumping through that section was also a bit frustrating as it was easy to run off a ledge instead of jumping off of it. Some coyote time is probably all that would be needed to fix that.
Neat idea, though, especially with the unique visual style!