Thank you so much for your feedback.
We have done what we can to resolve the WebGL issue. To fix the error, all you need to do is click the widescreen button and [Alt+Tab] out of the game once.
We apologize for the lack of in-game feedback. The game does offer basic controller support. Additionally, while the prompt for the flashlight is available during the beginning of the game, the flashlight is unavailable until room 2.
While we are unable to make changes while the voting period for the game jam is still in process, we do intend on fixing these issues in later updates.
Please let me know if you have any questions. I would love to make this game work for you.