Symmetrica: Minimalistic arcade game is fun! There are 16 free levels. 36 extra levels cost $.99.
Each level has multiple guns that must shoot targets. Sounds boring! It's not because the guns are rotating slowly and often traveling around a defined path. Sometimes the targets are moving too.
Yes it's a shooting game. But I would classify it more as an artistic game.
Sorry, no images to display. Trust me, this game is a winner. I completed all the levels over 2 days.