There's a problem with this.
Unlike most of my reviews, I'm not gonna talk about the game as a whole. Instead, I'm going to bring up this: This is a prototype, correct?
Instead of finishing the game and uploading it, you release...a prototype and have us play it...why? The game's obviously unfinished. Hitboxes are weird, you can't fire in more than one direction, the model glitches out, there's no story or context to anything, and it lasts less than a minute.
Generally, you should keep your testing to you, and people you trust. Not upload it to Newgrounds and be like, "YUP THIS IS A GAME GUYS."