I think the switching between perspectives thing is already a nice concept, and you've done a great job executing it in such a way that really demonstrates the potential of that concept. Once I got the hang of how it worked, with the perspectives beings to to dodge the specific attacks, I really grasped how this could be expanded into something really cool.
Of course, as is the nature of jam games, it's a bit limited now. But it's difficult to criticize it for that knowing the constraints. It's just that the concept is so well done that, with a bit of polish like sounds effects, feedback, etc., I would really be down for more of this!