Happy Tree Friends Wiki
Happy Tree Friends Wiki

A Vicious Cycle is an episode of Happy Tree Friends, the fifth episode of Internet Season 4, and the 83rd episode overall.


Mondo, I tilt my cap to you.

Cub is riding a green metal tricycle in front of his house when the camera dramatically zooms in on the bushes, where the scene quickly changes to night and Fliqpy, covered in scratches, pops out from the bush. A police siren attracts his attention and he turns to see policemen Lumpy and Disco Bear emerge from the police car, wanting to arrest him. Fliqpy pushes Cub off the tricycle and holds it over his head as an attempt to use it as a weapon. However, before he can do anything, a bolt of lightning strikes the tricycle and instantly reduces Fliqpy to a pile of ashes, which is then blown away by the breeze, leaving the tricycle intact. Cub, Disco Bear, and Lumpy stare intently at Cub's

Despite turning into a killer tricycle, this is the most OOC moment Fliqpy has in this episode.

tricycle when Pop suddenly burst into the scene, carrying a bowl of nachos and several bottles of beer, and he invites the officers in for a snack. As Pop and the policemen are eating in the living room and watching TV, Cub happily rides his tricycle inside the house. However, Pop doesn't approve of Cub riding the trike indoors, so he proceeds to place it back outside, much to Pop's standards and Cub's disappointment. Back inside, as Pop tells Cub not to do such a thing again, the power suddenly goes out. The tricycle bell rings and its light turns on before it jumps at Disco Bear, making him scream. Lumpy quickly turns on a flashlight and is shocked to discover blood and skid marks on the couch. He becomes even more shocked to discover Disco Bear's severed head on the coffee table, with his brain exposed, and nachos embedded all over. As Pop leaves the scene, Lumpy closely examines Disco Bear's severed head.

Disco Nachos. Mmmm. Rawr...

Pop goes into the basement and discovers the power box has been tampered with. The cover is blown open, and the switch is down. Pop proceeds to switch the power back on, and everything is normal. Happy and content, Pop climbs up the stairs to exit the basement, however, at the top of the steps, the tricycle stands there. The trike lightly taps Pop, making him lose his balance. Pop then falls down the basement steps, breaking an arm and a leg before colliding into the control box, electrocuting him until his head pops off from his body.

Inside the living room, Lumpy is enjoying the blood-covered nachos from Disco Bear's disembodied head, when all of a sudden the lights turn off again. Lumpy turns on his flashlight once more and sees the tricycle with Pop's severed head on the seat, the bell still ringing. Lumpy, still clutching Disco Bear's head full of chips, runs into the hallway closet to hide. The tricycle slowly rolls by the closet, oblivious to the fact that Lumpy is inside. However, Lumpy blows his cover by making a loud crunching noise as he devours another chip. The tricycle skids to a stop, opens the closet door and attempts to tackle Lumpy, but Lumpy tries to fight back by holding the pedals. Unfortunately for the moose, the tricycle spins around and hits Lumpy's face five times, decapitating and killing him.

Pop's severed head. Guess he wasn't ahead of the game.

Sometime later, in the blood-covered living room, Cub contently rides the trike indoors once again. Just before the episode ends, Cub rings the trike's bell, which is stuffed with an eyeball.


"A wheel that turns gathers no rust."


  • This is the first episode where we don't see why Flippy flips out. He just starts the episode that way. It is also not known what caused him to flip out in the first place.
  • Usually Fliqpy uses Rambo-style traps to kill people. Here, he prepares to attack Disco Bear and Lumpy directly. With a tricycle.


  1. Fliqpy is struck by lightning and disintegrates to ashes, though his spirit continues to live in the tricycle.
  2. Disco Bear is shredded and decapitated by the tricycle. (Off-screen)
  3. Pop is knocked down the stairs by the tricycle and is electrocuted. He is decapitated soon after this.
  4. Half of Lumpy's head is torn off after the tricycle uses its rear wheels to hit him in the face multiple times.


  1. Prior to the episode, Fliqpy is bruised and scratched.
  2. Cub is pushed off his tricycle by Fliqpy.
  3. Pop breaks an arm and a leg while falling down the basement stairs.
  4. Lumpy gets hit in the snout many times, some of his teeth fly out his mouth, his snout is sliced off.

Survival Rate

  • Amount of surviving main characters: 2
  • Amount of dead main characters: 3
  • Total rate: 20%


  • Pop's bones put holes in his robe.
  • Pop's hat is slightly ripped and blackened when his head is on the tricycle


  1. Cub rode the tricycle without touching the pedals, even before Flippy possessed it.
  2. The design of Flippy's beret changes three times.
  3. When Disco Bear steps out of the car, he is much taller than usual.
  4. When Fliqpy looks at Cub, Cub rings the bell on his trike, without moving either of his hands.
  5. Cub, Disco Bear, Lumpy and the police car are nowhere to be seen when the lightning strikes Fliqpy.
  6. Upon freeze-frame observation, Fliqpy is already burnt to ashes before the lightning strikes him.

    If you examine this picture carefully, you will find out that the white line above Fliqpy is a lightning, which is on it's way to hit Fliqpy's corpse.

  7. Lumpy's antlers change places a few times.
  8. Cub's safety pin changes position only one time and it's when he looks at Disco Bear's head.
  9. When Pop walks up the stairs after lighting up the power, the shadowed part of the background should have a lighter shade as the basement is entirely lit up.
  10. Pop shouldn't have even been electrocuted, his body would have simply punctured the switch and he'd be stuck.
  11. The blood from Pop's head doesn't stain the tricycle seat.
  12. Lumpy shouldn't have been able to fall backward in the closet.
  13. How did Disco Bear's head end up on the couch at the end when Lumpy dropped it in the closet?