Solid yet....
Although it is a nice solid shooter, it feels a little weak on the side when compared to it's older brother games Redshift and Blueshift. The background seems to loop endlessly and is very unappealing to look at for long periods of time. And the "upgrades" are very sparse and always the same. I feel like you should of saved this as an easter egg of sorts for the next game in the Shift series. It would have been a little better and people would appreciate the gesture.