Appreciate your opinion & Thanks for playing! 1. You can undo your moves by pressing "Z". 2. There's a way to restart level without reloading a page - you can leave the level to the Hub and then immediately re-enter. It will start again.
ok thank you very much, maybe you could have solved this problem by writing it on a sign of one of the early levels, thanks for the clarification, with this new knowledge i will try beating the entire game, thanks