Since you can't really surprise your opponent with your powerlevel, I think that in a future version you should be able to hide your powerlevel. It would be pretty easy to do, just have a button that lowers your powerlevel, and a button that raises it (no higher than what it's maximum is, of course). And maybe someone can have 1 "boost" per life, where if they press the raise PL button, it raises their Powerlevel a certain percentage higher than its maximum instantly for a short amount of time. The character should take a short moment (1-3 seconds), yell really loud, a large aura should burst out of him, and his powerlevel would raise. This would be a great tactic to do. Hide your powerlevel, and when you want to suprise your opponent, hit the boost key and your PL will instantly skyrocket. Maybe if someone's scouter is on you when you do this their scouter "breaks" and doesn't work the rest of their life.