That was fun! :D Cool pixel art graphics, really nice sounds :) I like the concept of dead bodies as clones, this is a nice way to explain this gameplay from the side of story :)
One thing (I don't know if it was a bug) I encountered was when I was jumping from the moving upwards platform and hitting the ceiling, that would always kill my character. I was assuming that I will only be killed if I stay on this platform long enough to get squashed between platform and ceiling.
The fact of this game being your first jam game makes this entry really impresive! Good job! :)