Kylinworks had a rough entry into the App Store earlier this summer, but they're flying much higher with this competent endless shoot 'em up-slash-flight combat sim.
Argh! A superbly designed Castle Defense game is thwarted by severe stability issues, at least on this reviewer's iDevice. Let's hope this gets fixed soon, because it's an absolute must-have for any genre fan who's lucky enough to get it working.