A post-credits scene is a scene or small event that happens after the credits have finished rolling. This can include audio, such as in Episode I, a quick clip as in Episode II, or a full scene like shown in Episode IV. A full list is below.


Image Summary
BlackJedi Master Kermit teases Episode II by singing We're Doing A Sequel! after the credits.
BlahIn a blooper from Episode III, Darth Elmo jumps up from off-camera and shouts "Blah!" after the credits of Episode II.