Thanks for your interest and comment! Quite helpful.
Yes, I agree, for UX experiment, there are many things can be improved to make the game easier to understand.
btw, nice mice game you made!
Thanks for your playing and the long valuable post!
Did a bit of search and seems the error is caused by the compatibility of Godot web build and browser? Apology for not knowing why and not able to reproduce.
Yes, I am also a fan of "Baba is You", which is quite a fun game, and also the ultimate goal for me as a puzzle game maker!
Thanks for the long post, and your valuable feedbacks!
Apart from not having BGMs, which is obvious, I think your confusion is mostly caused by the lack of tutorials and instructions. The rule about which box will be spinned is written as "nextest" without any diagrams or further explaination, as well as the rule for walls. So it will be hard for players to understand at first time.