i cant reach the ambulance, idk how
Oh that's a fake ambulance, you're not supposed to be able to reach it lol. Just keep walking forward and fall down that hole.
And if you get low health you can buy medicine in the shop to restore it. (it's a good investment when you get at the end of a level, too.)
I manage to beat it, but only cause you said it how, that was tricky. i like it