Really cool game. I especially liked the pace changes and different objectives between the missions. The sound is also very fitting and the graphics fit also very well to the type of game. For some reason I had always a scroll bar next to the game even in full screen. Maybe something you could improve. I also see this as a very cool mobile game, especially because of the portrait format. You would just need to add some touch controls.
Congratulations to the cool retro style game with some nice innovative ideas! Well done.