What do the gem hearts do? I thought they might replenish health, but everything moves so fast and it doesn't seem to affect my survival time, so its hard to tell.
Yeah, the heart drops replenish some health, but it's a small amount, so it's easy to miss. Once you become stronger, more hearts drop and their effects become more substantial.
So far this mechanic is not very fleshed out, it definitely needs more work.
