The object is to push the colored tiles in the direction of the arrow that's on them and get to the colored stars. Lots and lots of wormholes.
97 levels for the free version. I've done about 25 levels. Good puzzles, good graphics, good price. But there are so many other versions of this.
The PAGY Award are fast approaching. If you want to nominate some puzzle apps, contact me: (my last name)@hotmail.com The final awards will be announced December 31.