i spent very little time for a sub 1h., I cant really count : It was 5h recently (today and yesterday), and it was like 4 hours total from a month ago, other than that i probably only played story mode for like 2hours casually ever. So yeah, I definitely spent less than 15 hours grand total in Story mode ever for a 56m run, i think thats good enough to move to Normal difficulty. COME PLAY ALL BOARDS EVERYONE !!