I just saw that today, Jig, about the badge for the 50% use of powerups. Weird badge, I agree. And I haven't really needed the PU's very much, but I guess I'll have to start using them anyway.
I thought I saw in the How-To's that you get the same # of PU's for Med and Hard. I'll have to look at that again. In any event ... cute little game. I only wish there was more of a 60's tune involved. But I guess I can download some tunes to listen to while I'm playing lol.
(I love the little rank buttons, too!)