I’m having the same issue here. In the console there’s multiple errors saying it couldn’t load some assets.
Viewing post in Cursed Tomb jam comments
Sorry guys, we were rushed to upload the HTML5 in the last few minutes, and we didn't expect to face any problems because everything was running normally in the editor testing, I believe the problem only occurred because the sprite region sizes was not a power of two compared to the bat and other enemies...
We are working on hotfixes, but we will not be able to upload them until the voting phase is completed.