In gameover screen text in buttons is too long and it would be nice if on "main menu" button instead of "главное меню" which is too long, was "гл. меню", "quick restart" button has the same problem, I suggest write "рестарт", which is literally kirillization of a word "restart", and "быстрый рестарт" also would be too long I guess, so "рестарт" is perfect imo, don't worry, every russian gamer knows what "рестарт" means