I can't leave the help screen without reloading.
So, I really like the idea. Some of the execution is a bit wonky, as sometimes I can pull the objects, and sometimes I can't. I also truly hate that I switch direction when move up and down. (aka I turn left then walking up.)
But I enjoyed the puzzle element. I think with a bit more polish this could be a really great game.
So, after double checking both the game code and in-game here on the page i haven't found anything about it and I didn't saw this, pretty sure it's a bug from html conversion, it happens mostly when it's the first time on the game, consider pressing F5 to restart the game, most part of the times it solves the issues, but I will continue to investigate it, thank you for letting me know about that.