That was quite fun!
I did not entirely enjoy the fact that hitting a wall sends you back to the beginning but I can see it as an extra difficulty. The hitbox seems to be kinda large as well, as even if I'm not touching the spikes I die from them (and the bomb seems to have quite a bit of radius, I lost HP while being a bit far from it).
I'm not entirely sure if I died because I was stuck (i died right after) or if it was because of a large hitbox.
It is hard to play as two players when you are only one! Overall it was a nice game, congrats!