Fun game! I remember playing this prior to the submission and glad to see you already made more improvements to it. The balance of the game felt just right, the development of the levels and the challenges were engaging and kept me playing more and more rounds. I believe there was only one boss level the helicopter which was really cool and fun. Not sure if you're going the story route or the endless levels route but having more bosses would be cool and engaging and maybe seeing more of the story develop. I can see a lot of potential with more enemies, weapon designs, balancing. Great job on the game!