hey everybody 1.2 is out, it adds crazy wacky stuff

• 3 new alien-infected zombies
• new alien final boss
• shop page 2
• new skins
• win icons on class select screen when you beat the game as that class

okay since you found this, to unlock the 5th hidden skin in this update you have to go to the pause menu while in-game and do the first part of the Konami code on the arrow keys, (up x2, down x2, left, right, left, right) then a guitar sound will play

that's about it