LOL!! This is a very important question!!
I'm level 80 and I use my Nemo...he is a level three with an 810 point value. He is at full power up again almost immediately after using it. He multiplies himself, giving me a star almost every time, and definitely at least two suns each time I use his power. I don't use any extra power ups before beginning play, and I can still get those scores. Using power ups, like extra time or whatever, I've gotten over 10 million once or twice, so they aren't much help to me. If I use them I panic and feel extra pressure to get a good score