Hitting the jumping spidery mobs doesn't totally stop their forward momentum, so they can jump at you then get hit by a sword but still fly into you...
More health would be nice, maybe a heal zone at the start. I killed all the enemies and was working on cutting all grass, breaking all rocks etc. and I keep touching fire and now i'm almost dead but am out of healing items...
Two issues with bow/arrows: Can't seem to pick up arrows that are dropped by mobs. If you get both bows, you can drop one and pick it up repeatedly to get infinite arrows.