As a first game, I'll give you three stars. Not bad for a first effort. But it froze my browser HARD. (64 bit Firefox 63.0.1, on Mac OS X 10.12.6) I like what you're doing here. The perspective was handled very well. It needs to be fleshed out. Alternative weapons, perhaps. A time slowdown power up. Consumable bomb items. Something. Keep up the work. If this is where you're starting, I look forward to seeing your later masterpieces.