Cosmo Kramer’s entrances on Seinfeld are legendary. Now you can see all 380-plus entrances from 172 episodes in six minutes, from the first episode to the last. Kramer (a.k.a. Michael Richards) actually knocks on his first entrance and exits on his last. Watch Kramer slide into the apartment—except for the one time he rides a bicycle through the door—as usual, catching Jerry and the gang mid-sentence.