Its cool , i managed to play few rounds and still wonder why the main char is a wine bottle :)
You should defiantly spice it up a bit, show the bullet count, maybe some cool SFX with camera shake when u shoot or kill an enemy, this could have been way more fun but for 7 days you did a great job!
(its not 1bit btw, there's black, white, 2 different shades of gray etc'.. )