I'm currently stuck and my might level is only 334, and the main quest requirement is 650, and I can't even do "Perky Predicament" yet because it's 550. I can't do any other side quests because I can't reach the parts that are blocked with lava for the U-Store truck. Am I supposed to keep repeatedly fighting 6th graders until I manage to unlock more artifact slots (which would take a very long time) but that's the only thing I can do. Any suggestions?