This idea is exactly the kind of perspective transformation or paradigm shift I was hoping to see a lot of from this theme: questioning the practices in popular games when you think about it more than you should. Pokémon is full of that questionable stuff indeed.
Your story/cutscene made it work to the theme, otherwise I'd just say it's a good remix of vampire survivors. I really like this type of game, but I'd have strongly preferred if you had also explored new (combinations of) mechanics to fit that story, when it's a game jam. It felt a little too much like a standard upgrade-based shoot 'em up game (i.e. playing it safe), and I'm going to subtract some points for that reason (for all I know, you've already done a vampire survivors adaptation in the past, and then you just copy-pasted it, added a basic story and added new graphics - that shouldn't give big rewards in a game jam that's about coming up with new interesting ideas imo).
On the flipside, this game is a very well-made adaption, the sounds work very well and the game is balanced enough to be very fun to play - and I can't lie that I was addicted for a bit. Here's some of my playthrough: https://imgur.com/a/8B1296v
Great job, very impressive - especially if most of the code was done during the jam. Thanks for sharing it!