Party Poopers (S04E17)

S04E01 Chicken In Chichen Itza Part 1: Pyramid Scheme S04E02 Chicken In Chichen Itza, Part 2: The Wages of Fear S04E03 Ben in Rome, Part 1: A Slice of Life S04E04 Ben in Rome, Part 2: The Bee's Knees S04E05 Gentle Ben S04E06 Funhouse S04E07 Summer Breakers S04E08 The Monsters in Your Head S04E09 Queen of Bees S04E10 Falls, Falls, Falls S04E11 The Greatest Lake S04E12 Mud on the Run S04E13 It's Story Time S04E14 Cosplay Day S04E15 Bottomless Ben S04E16 Tales from the Omnitrix S04E17 Party Poopers S04E18 Wind Some Lose Some S04E19 Digital Quality S04E20 Tim Buk-TV S04E21 Tokyo Fun Part 1: Big Bugg Bash S04E22 Tokyo Fun Part 2: Slamming It Up S04E23 Growing up is Hard to Do S04E24 The Hex Factor S04E25 Sweet Tooth S04E26 Medieval Upheaval S04E27 Speed of Sound S04E28 Xingo's World S04E29 Tummy Ache S04E30 Players of the Lost Park S04E31 De-Fanged! S04E32 Mock 10 S04E33 Rekoil S04E34 Buktu The Future!