Good start for a game, I think it has a good potential. I liked the graphics, and the gameplay was pretty good, except for the boss that took me 5 minutes to kill with the two bullets upgrade. I also didn't know how to die (lol), I thought that the yellow bar would tell me but you don't die when it's empty, so I guess not. Could beneficit of a story and a good ambient music could make the experience even better. Good job!