I love these types of games, Static707. These are among my favorite arcade games, next to pack man and Metal Slug. I am actually in the beginning stages of a project like this myself. There are, of course, a lot of differences, but the idea is the same (top down craft shooter).

Also, I love the 2D game feel with 3D models. Again, one of my favorite feels in a game. So, basically, your game encompases most of my favorites in one. It may be a little rough around the edges, but all arond awsome. One thing, if I may suggest it, is you may want to add a difficulty level selector... I beat the game 1st try. However, this is only if you have plans to further develope the game, which from the soudns of it you are!

Good luck,
Raddaddy