Wow, nice observation here 
. I was playing this game when I pixeled it. Found it so cool that I wanted to make my own shooter. Still a WIP though.
Cool stuff! Make me thinking about Xenon2 of bitmap brothers. Like the alien-like looking.
I'm coding it in C using the SDL.
Thanks for your comment and I'll see what I can do for the middle 
nice. The middle looks a bit od but it's good nontheless. What are you making this project with?
haha, Bitmap Bro is the best! You gotta play Gods, master piece... Love your core pixel style, please inform us when your shoot'em up demo is done ;)