It is indeed very unfinished, but it's a start ;-) One major bug I saw is that after dying and clicking restart, it seems the zombies from the previous round are still there, although they are invisible. I kept getting bitten by invisible zombies.
Sorry for that. I needed to hurry up so fast that I didn't even tested the replay button
I know that this is sort of an experimental website, but still, that's not really good release policy ;-)
Made for a game jam so yeah. Maybe if people like it I'll finish it