Fun Game!
Some Feedback:
I found the font to be a bit hard to read.
The second run feels a bit constricted. Like in some places I has to stand and wait for my past self to open a gate. I would have preferred some space between the player and the danger line to have some breathing room.
I had a hard time understanding how the platforms work in level 3 run 2. I didn't understand if they were time based or what was triggering them. In level 3 run 1. I also had some difficulty knowing where to go, I didn't notice the bridge setting into position until my 4th death trying to go down.