[quote name='Roufuss']Shippy, how is Astro Pop / Crystal Quest / Mutant Storm Reloaded?[/QUOTE]
I enjoyed Mutant Storm Reloaded the best out of the three. It's similar to Geometry Wars but it is level based and the shape of the levels changes slightly. There are a lot of levels (80 I think) and a lot of difficulties (6 I think), so there is a lot of replay value.
Astro Pop is a decent puzzle game that gets extremely difficult (at least for me). If you like the demo, you'd probably like the whole game.
Crystal Quest is another move with the left analog, shoot with the right. It's decent, but I'd go with Mutant Storm Reloaded before this one.