Oof sorry about that final boss bug I've never had that happen before, I'll try to fix it after the jam. Also yeah I realised how overpowered that guy was only when it was too late to nerf him lol.
My take is always "if the balance is the issue, it's a good jam game". In bad jam games, you don't even care about the balance. Cause if the gameplay loop is "regular jam tier", then balance doesn't get to become relevant. Balancing takes time, jam games don't have time. So it kind of is what it is.