OK, here is the gliches that I found:
1) First of all, u don't need to push down arrow to get more bullets in a clip. Just start to shoot from any weapon u want (but hold the fire mouse button), then just tap space button once. Combine 2 types of weapons to get best imba. I called it "clip bug"
2) Another bug: when u need to reload ur weapon, just tap 'r" and then "esc", game is paused but weapons are continue to reloading (especially helps with shotgun, coz of slowly reload)
3) There is one more funny bug that i found: when u die, click at right corner non-stop, "retry"->"accept", u will have a chance to appear lying on ground shacking hand and legs like u are killing by zombies right now, u man move on the group like idiot and can't shoot, looks funny and weird :D
It is geniously, very beautiful game. Exellent. But music is not so beautiful. In "Dreams" was more beautiful music. Still many thanks to all who works on it. Greatest work, painting and style are awesome.