The guys at 1UP really like everyday shooter. It has some interesting mechanics. For instance, the rules change with each level, with a different logic to how one succeeds. Because the games visuals are entirely code based (no textures, all rendered vectors and polygons), the game has affects that can be applied and completely change the way the game looks. Unlike some games of this type, this one has unique enemies in each level that function in different ways. It seems like it might be worth picking up.