Good
Nightmare isn't impossible but for some reason after getting the medal, it won't seem to be registering to the account so I don't know if it's the game or not.
Besides that, on nightmare mode, if the health pack is suppose to be at a particular set variable then okay, if not then, it shouldn't be dropping the hp to half hp immediately.
The bees and obtainable items shouldn't be too low into the ground to be unreachable.