Sadly i couldn't get through level 4, its either im not smart enough to figure the tile path or the close/open eyes should have helped me in some ways. But with the lack of tutorial, it's very hard for me to figure the mechanic out.
Also there's a soft lock on level 4 where if i placed all the tiles and make them disappear after stepping on them, restarting the level will spawn 2 tiles instead of the original 3.