The web browser was't working so I downloaded it. I see how you wanted the gameplay to work, but the enemies move and shoot too fast, the buttons for the controls are kind of weird. When you try to rewind the enemies can still shoot you and you die before you can even read the options. I would recommend making it so when you attempt to rewind, making it so the game is paused. The way to get the boss could also be explained. Besides these flaws, I think the game idea is really good, just poorly executed in the limited amount of time we had.