I like the style, giving the block some glow give it a nice simple but quality feel. And then nice sprites for the enemies!
And I love how obstacles move in the dodge game. Looks really good!
But I agree that it's a bit too hard. And probably too punishing to start all over again, especially given that it's just walking across the rooms. So maybe making the player restart the boss instead of all that would have been nicer and make the difficulty fitting as well!