okay this is very impressive, not only because this is your first game ever, but because it's a really good game (my first game sucked compared to this). The main gameloop is very interesting (lethal company like I guess) and you tackle it in a fresh way. The music and the art are awesome, I was going to tell you that as a fellow pixel artist I love what you did and then I saw it's an asset pack ):
Anyway awesome game very well put together !!!