Thanks so much for the review and the kind words! You die as soon as an enemy comes too close to you and there is no health. But this is indeed not very obvious if you rarely die. A friend of mine noted it might be good to have hearts or something, then I could also increase the enemy difficulty and it would be more obvious. I might add this and more in a future update. Finishing the first 2 levels and dying in the third is pretty much the ideal playthrough at this time because there`s not so much content after that.