played, good job so far.
the good:
-cool art
-good enemies
-interesting mechanic (find people I assume?)
the bad:
-repetitive shooting sound, after a while it's just too much, I'd force the player to stop shooting, like an eventual overheat or something
-too hard, never found the people I was supposed to rescue, played for a bit, never found anyone, for level 1, add some success early.
-no minimap, easy to get lost. either that or make each "section" unique looking with a different background
-the old retro tv look is ehhh.. it's just gimicky and doesn't really serve the game too much, it's pretty dramatic - I could take it or leave it.. if it wasn't as intrusive I would keep it.. I don't know, I'm just not sold on it. Maybe make it an option to turn off?
-I assume you will give the player a walk animation? if not.. I definitely would do that.
keep up the good work...