Disc 1: At the main menu, press up until the red highlight disappears, then press enter/select/play. It then shows a gun contemplation called "Guns Don't Kill People......Puppets Do."
Disc 1: Go to the Extras menu and press down until the red highlights a check mark by the window, then press enter/select/play. It's more of the nerf gun fight seen in the "video blogs".
On Disk 1, at the Main Menu, highlight "Extras" and press up on your remote. You'll get to see a short video of the cast and crew at a party wearing funny hats.
All easter eggs were generously submitted by SirDonk