Good but not the best.
Positives:
Addicting play - this is the third play I've played this game thoroughly, I like!
Nice colourful graphics - the title RetroShoot fits the game aptly :)
Great upbeat music - fits it very well.
Negatives:
Random difficultly curve - Though it keeps you on your toes, it feels a bit infuriating to go through an iron wall of enemies just to go through a level of easy asteroids, which are cluttered with
Random power ups - I love the power ups, I really do, but they seem to appear at the wrong time. When even at lower levels it's impossible to defeat the enemies without getting Striked Out, it becomes an unpleasant battle of long attrition. If the power ups (or at least the firepower and extra ships) were more effective and lasted longer, then it would be better.
Other than that, it's a great game!