I love vampire survivors and this definitely scratched that itch for me, great job. The switching was a great twist. The upgrades were cool too - I found the homing 'dash attack' for the daggers surprising and pretty unique.
Oh and nice music too! It really ramps up about 2mins in and was well done.
Made it to wave 10 and had fun with this. Might need to play it again later to beat that boss...