Radiangames has released an upgraded iPhone and iPad version of its XBLIG hit and Indie Royale-starring shoot-'em-up Ballistic.

It's a little difficult to tell from the trailer above, but I think it's a twin-stick shooter, and a very pretty one at that. The iOS version includes multiple challenge levels, Game Center leaderboards and achievements, and a control scheme that allows the game to be played with a single thumb.

Ballistic SE is priced at $1.99.