While trying to design an interesting puzzle for my game, some idea comes to my mind like Jigsaw, Key Item, Hidden Passage Riddle, collecting Items? But they're kinda common already, right? One or two is ok but i guess player will get bored soon with those kind of puzzle. So do you have any idea for an interesting puzzle that RPGmaker can pull out - assume you know coding? Or a puzzle from your games that you feel interesting?