There is no New Game+ option but you can do a glitch that gives you maxed out weapons and infinite magic at the starrt of the game. First you must unlock the Combat Arena. Set magic to infinite. Get killed in the Combat Arena 5 times so that the game asks if you want to switch to easy mode. Choose no. You should be at the main menu now. Start a new game on whatever difficulty you were on during the Combat Arena. You will begin the game with all weapons maxed out and infinite magic.