Great game! It works well with the combination of the overworld and the combat with similar controls in both but different goals.
I like how you have to protect the hearts in battle, I first tried to pick them up to gain more health. But it's a good thing to protect them, like how you need to pay attention to not bump into them.
It feels a little fiddly when there's a 1x1 hole you're trying to fit into from a corner, kinda wish that the blocks have a circle collision in corners.
It's a little slow to aim around. Maybe if there were mouse controls, or if it was possible to hold shift to change angle faster.