Bloopers are different from goofs in that bloopers are mistakes that occur while filming and aren't put in the final film. The blooper reel of first three episodes in the Puppet Saga involves the bloopers, extended scenes and some on-set interviews.

Blooper Reel

Below are story boarded images from the reel with information about each image:

Image Information
Blooper legs
After the title-screen, Kermit's legs fail to properly walk on Daniel during "We're Doing a Sequel", with most of the scenes' mistakes being Noah's fault.