в игре смысл какой, ели никто не может ее пройти? 4 уровень- сделайте еще подсказку, потому что стрелка это недостаточно - слишком многофункционально!
The words I use in my comments are carefully picked to act as hints and primers. I hope that they aren't lost to translation.
Now, now, if you already got to lock 4 there's no need to be so forceful.
I can tell you that the answer to this lock can not be found by simply staying within the game.