You made this from a tutorial, didn't you. I used to think this was something that someone made. Not the best, not even good, but still playable. Then another came thru that's built the same exact way. And another. And another. Eventually, I figured it out- it's a tutorial from somewhere.
Because you haven't been around Newgrounds, you may not understand. There are LOTS of these around here. I don't know yet where exactly this tutorial comes from or what software it is, but I know it's the basic tutorial because there are so many of these that are exactly the same. Because they go under different names, it's impossible for me to show you how many, but they're all over the place.
This one is playable, but barely. It has the standard square box for the enemies to walk around. The enemies are the same as usual. It has the same guns from the tutorial cuz they weren't changed. There's no replay button, though. No music. No sounds. Maybe I should say that it's startable instead of playable.
I know it's your first game, but this needs a lot more work to be passable. Please keep working on it, but please don't submit every new template you finish like some people do. There was a guy last week who had 27 games which all had low scores because he kept submitting the same things with minor changes and nothing worked well. All his scores were in the 1.0 to 1.75 range. He got frustrated and deleted his account a few days ago. I don't think Newgrounds deletes accounts that are full of poor scoring items, but he sure qualified. He won't be missed. Don't be like him.
Practice and make something good, and when you enjoy playing your game, then we might enjoy it also. Make it the best it can be before you submit it. If it's only a game that works but isn't good or fun, the score will be low. No one wants their account filled up with low scoring stuff, right? Do your best, and good luck. :)