It was... Meh.
About what I excepted from a game made in Gameguru.
Dialog was a bit cringy.
I get the feeling you just took a bunch of pre-made assets and threw them into a blender.
Gameplay was a bit clunky, I would recommend editing the scripts for guns and AI just a bit.
Also, the game smells of lazy. You didn't even replace the default background for the menu or icon. Not to mention floating ammo crates.
It's not a bad game... but it's not great either.
I do hope you improve though, try different art styles and find the one you like most. Start learning how to make better gameplay and scripts.
As much as I ripped this game a new one, I do hope you improve.
Enjoy the rest of your day :)
~Star