As far as the power ups are concerned, the first activates a massive lightning bolt that strikes down the screen, destroying all the orbs it touches. The other power up creates a laser beam which zips across the screen, completing clearing it of orbs.
I'll be uploading a small patch for this game soon, which will fix up some small glitches, as well as add in a new power up.
Enjoy! Stick Life RPG will be coming either tomorrow or the next day!