Amazing game.
This game is truly cool. I only played the "Ground" portion, but it is real fun. I like that you can only guide with left and right, it makes this game a bit of a challenge, which is always a good thing. I also like that you can customize the colors. The movement is smooth, the controls are cool, the music is great, the enemies are good. My only gripe... no, it's not a gripe. I just get a bit confused by the off-screen movement, but it seems intentional (the large off-screen area). Very good!