Pretty slick.
One of the bees was clipped into the ground in front of the dungeon entrance, and couldn't be killed (it was could attack, though).
The bees should have some sort of windup before attacking, so you can actually do something about it (like Jdoe suggested, a blocking action).
Maybe make the companion AI seek out hearts if the current character has full HP, or make it so you don't pick up hearts at full HP.
ESC should pause the game / return to main menu / exit game, right now I had to alt-tab out of the game.
Nice job so far otherwise, feels almost professional