This is easily one of my favorites I've played so far, love the idea, design and the boss theme that won't leave my head. Would love to see this expanded further if you ever decide to do that.
If I had to criticise anything it's that I think the characters are Too Willing to do the correct thing, I would have made them a little more stupid but I think that'd be an interesting way to implement difficulty settings just make the AI more suicidal.