A nice free app that's done well. The Bryce 3D like terrain works well. Controls and easy to use, you can even adjust it while a shot is still in the air. There are 15 levels, some repeat backgrounds, but each time you play, it's randomly picked and placement. The higher the level you are at, the more targets you have, and some move. You have 15 shots. Use all you're ammo at any of the 15 levels, you start over. On my first try I finished all 15 levels for a final score of : 185,300 Post your scores: http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=287031640&mt=8 The explosion and vibrate is satisfying when you hit a target. But it's a little jarring as you hit the last target and switches to a new location. Every shot, missed ones or targets, will leave black smoke for the rest of the level. I wish it had some kind of gear or cranking sound when adjusting the elevation.