I noted the bugs and will fix them after the jam. Desktop version would probably get around the crash browser issue, but I've managed to hit +lvl 17 without any browser crash.
I plan to merge this game into another game I worked on in a past jam, The End Always Come, and work on the combined vision in March.
I have a GIANT list of things to change, add, and expand on, but given you love Vampire Survivors games, would you want to play-test the next version in March?