Let's see, the first time I played through I kept trying to walk up the wrong side of the stairs by the basketball court, so I couldn't get to the next area. In my boredom, I ended up killing those hockey player enemy things in the ice rink again and again by spamming Ifirt. I didn't realize I had to go up the right side of the stairs to get by until all three of my party members were maxed out. >_>