Thank you!! I'm glad you enjoyed it. Really happy to hear that you played through it twice. :)
Thank you for the feedback. I should have reset the position of the cultists on respawn, that could have resolved the issue. The cultists weren't a threat because I wanted the game to be easy enough for most people to complete it, and outside of running away, I didn't get time to implement any way to address them (I wanted to add a fireball ability in level 3). In the end they were just kind of a bit of world building.
The menu was bound to Tab rather than Esc because in the web browser hitting escape cancels fullscreen and takes focus away. I've gotten complaints about that in the past. I should have done something to rebind it to Esc for desktop builds. Similarly a quit button won't work in an HTML export, but should have been included in the desktop builds of the game.
100% agree on the mouse sensitivity setting. It didn't cross my mind.
The coins and pages were more for tutorialization and to help show the player where to go. It would have been nice if they played a bigger role had time allowed.
Thanks again for playing and for the excellent feedback!