Just as I loved the early version, I love this one!

 One little detail is one of the bosses that mutates but doesn't attack until his first form has been destroyed allows for exploits. You can use the mushroom of health to upgrade up to 99 times. I reached that part with about 3 of those, when combined with the weapon that lingers and grows when other weapons do, and the weapon that attacks all oponents at once and also lingers but grows when you consume foods it can be a bit ridiculous. 

I'm looking forwars to the full game, great work!!