All Deaths in Happy Tree Friends

Happy Tree Friends is most infamously known for their horrific deaths throughout the series.

Internet Season 1

1. Toothy flies off the merry-go-round and slams into a tree, breaking his bones and back.
2. Giggles flies into a chopped piece of wood, cutting her in half. She is then impaled by the merry-go-round's detached bar in her stomach.
3. Cuddles flies off the merry-go-round and into a plane's engine, shredding him to bits.
4. Lumpy is run over by a truck. (Deleted scene)
5. Giggles dies when Splendid flies too close to a tree branch, decapitating her head.
6. After swallowing a can of gasoline, Sniffles' upper body blows up when a flame reaches his stomach.
7. Generic Tree Friends might have died in a traffic accident. (Debatable)
8. Pop is sliced up by the blades of a helicopter.
9. Cub is crushed by a falling gurney with Lumpy on it.
10. Lumpy is crushed by a falling medical helicopter (to which his gurney was connected to).
11. The helicopter pilot possibly dies in the helicopter crash. (Debatable)
12. Cuddles is crushed by a whale.
13. Nutty gets his eye and other parts poked by whirling metal coils in the vending machine. (Death not seen)
14. Handy's racer drives into a parked ambulance, horizontally splitting him in half.
15. Lifty and Shifty both die when their kart falls apart and slides on its side, scraping away half of their bodies against the pavement.
16. Petunia dies when the wall of a carnival game falls on her, cutting her head in half.
17. 18 Generic Tree Friends have flung off a Ferris wheel that spins at high speed. (Debatable, some may have survived)
18. Lumpy gets vertically cut in half by the Ferris wheel.
19. Giggles dies when hot tea from the teapot burns her brain.
20. Petunia is electrocuted by an electric fence.
21. Toothy gets his head caved in by a swing. (Idol induced)
22. Nutty is crushed by a meteorite. (Idol induced) (Deleted scene)
23. Sniffles sinks into quicksand. (Idol induced)
24. Cub gets crushed by a boulder. (Death not shown) (Idol induced)
25. Flaky gets hit by Lumpy's car. (Idol induced)
26. Lumpy gets into a car wreck at the end of the episode, and though it is never revealed whether or not he dies, it can be assumed (simply by looking at the fates of the other characters and from the loud sound of the accident) that Lumpy did not survive his accident. (Death not shown) (Idol induced)
27. Cub is sliced apart by various debris shot out from under Pop's lawn mower and is ultimately killed by a broken bottle that removes a large chunk of his head.
28. Nutty's head is torn in half when Toothy inserts a carjack into it. (Deleted scene)
29. A woodpecker is stabbed with Fliqpy's bowie knife.
30. Cuddles' head explodes when Flippy inserts an air pump into his mouth and puts air into his head. (Deleted scene)
31. Toothy's neck gets broken after Fliqpy violently twists it.
32. Flaky is asphyxiated after Fliqpy hangs her with a wire.
33. Petunia is blown up by a hand grenade handed to her by Fliqpy. (Death not seen)
34. It is possible Flippy may have died after the grenade exploded with Petunia. (Debatable and death not seen)
35. Around 11 mussels are shown in the bucket, and two are cracked open and eaten by Russell.
36. Russell is impaled through the head and mouth by a swordfish.
37. The swordfish and the pufferfish eventually die from a loss of oxygen. (Debatable)
38. Sniffles has a huge chunk of his skull and brain scratched off by a monster hand from the ride.
39. Giggles gets cut in half by a pendulum.
40. Flaky has most of her flesh burnt away by lava.
41. Toothy is cut to pieces after Mime turns on his bedside fan, unaware that Toothy's bandage is stuck to one of the blades.
42. Giggles has her eyes gouged out and the inside of her head torn to pieces by Lumpy's mixer.
43. Sniffles is pulled into the water by an anvil and gets encased in ice, causing him to freeze to death or be put into suspended animation. (Debatable, because Cro-Marmot can survive in an ice block similar to the one Sniffles is in)
44. Shifty is ground into sausage.
45. Lifty is sliced into thin portions of meat. (Confirmed by Kenn Navarro)
46. Nutty gets his head stuck in a beehive and is stung to death both internally and externally.
47. Cuddles is sliced to pieces on a set of concrete stairs.
48. Cub is killed when a bear trap clamps down on his head.
49. Lumpy is accidentally decapitated by Splendid's eye lasers.
50. The Electric Eel gets scrapped in the coral reef. (Debatable as we don't see it exactly happening - the eel might've just also hidden in the reef.)
51. Russell hits a mine and explodes. (Death not seen)
52. Sniffles has his head torn off while attempting to bowl using his snout to pick up the bowling ball.
53. Petunia is flattened and cut in half by Cro-Marmot.
54. Lumpy gets tied up in his hammock, making him release a lot of blood and leaving him in great pain when the hammock opens.
55. Giggles gets impaled by some icicles. (3 deaths confirmed by Kenn Navarro.)
56. Cuddles has his face smashed open by a rock, his torso cut open with a hunting knife, and his intestines pulled out by Fliqpy.
57. Giggles is strangled to death by Fliqpy using Cuddles' intestines.
58. Flaky is thrown onto the campfire by Fliqpy while hiding in her sleeping bag, roasting her alive and cremating her.
59. Cuddles is sliced in half by a collapsing window.
60. Mime chokes to death on a peanut.
61. Petunia is impaled on a gear lever, which is then driven through her torso by Lumpy. (Idol induced)
62. The bus runs into two birds before flying off the cliff. (Idol induced)
63. Toothy is ejected from the bus, presumably falling to his death. (Death not seen) (Idol induced)
64. The Mole can be seen through the bus window at the very end, but he doesn't appear in Happy Trails Part 2, indicating he most likely did not survive the crash of the bus. (Death not seen) (Idol induced)

Internet Season 2

1. Giggles uses a makeshift spear to impale a fish.
2. Giggles either succumbs to hypothermia or her swollen leg injury from a jellyfish sting. (Death not seen)
3. Lifty and Shifty are eaten by a shark after Flaky deflates their raft with her quills. (Death not seen)
4. Flaky is murdered by Flippy, Lumpy, Handy, and/or Sniffles via an unknown method for accidentally deflating the raft with her quills. (Death not seen)
5. Sniffles' head explodes from the heat of the sun.
6. Flippy and Handy are killed when their rocket flies into the sun, incinerating them. (Death not seen)
7. Toothy's brain and his other eye exit his head through his eye socket.
8. Flaky gets pulled into a floor buffer and dies after being dragged along the floor at high speeds.
9. Disco Bear is killed when Flaky's quills are launched at him, puncturing his head and torso multiple times.
10. Lumpy has his heart torn out by a claw in a claw machine operated by Cub.
11. Cuddles bleeds to death after being stabbed in the chest with a straw.
12. Giggles dies from brain damage after having both ketchup and mustard pumped through both of her ears by Fliqpy, and squeezed out through her nose.
13. The Mole gets his skin torn off when Flippy hangs his turtleneck on a coat rack. (Deleted scene)
14. Petunia gets her face slammed and melted on the burger grill by Fliqpy, and dies by an explosion.
15. Flaky would have originally suffered Petunia's death. (Deleted scene)
16. Pop and Cub are crushed by the door leading into the diner, caused by an explosion.
17. Numerous Generic Tree Friends are possibly killed in the explosion.
18. Two Generic Tree Friends are set on fire and presumably burn to death.
19. A Generic Tree Friend is killed after the burger joint's sign crushes their head.
20. There are numerous dead fish, a decomposing pig, and a cow's skull inside of the whale's stomach.
21. Lumpy is killed by Russell's harpoon, after Russell fails to hit the skin around the whale's blowhole.
22. Russell's gets impaled in the eye on the mast of a boat.
23. Cub dies when the electric shaver he was sucking on tears his mouth and esophagus apart, either by massive bleeding, suffocation, or getting his organs shredded.
24. Petunia's skull is crushed by her lemonade stand's sign.
25. Lumpy is mangled and compressed when he is dragged through the circular opening of a stake in the ground.
26. A bird is electrocuted and vaporized by a power line.
27. Lifty is impaled on a tree after Shifty throws him out of the balloon, spreading his organs on the tree.
28. Shifty is cut in half and tossed about by a windmill.
29. (In the beginning on the DVD version), Fliqpy has presumably murdered somebody, and is now burying them in the grave.
30. Mime is accidentally decapitated by Lumpy's scythe.
31. Numerous Generic Tree Friends are possibly incinerated and die in the fire.
32. Some Generic Tree Friends die when everyone is trying to get out of the burning school. A few examples are one with a big hole in their head and their brain is exposed, and three hearts seen laying on the ground.
33. Fliqpy is seen already flipped out after seeing the school on fire (possibly reminding him of war), and is stabbing a Generic Tree Friend to death with his knife.
34. When the school explodes, it kills everyone. (The deaths of Fliqpy, Cro-Marmot, and Splendid were confirmed by Warren Graff.)
35. As Handy's tail gets pulled down by one of Lumpy's tires, his intestines are squeezed out of his body.
36. Lumpy gradually bleeds to death after slicing his jugular vein with a razor.
37. Giggles:
    1. She dies after having her head skinned by Splendid's fast flying.
    2. After Splendid turns back time, he ignores her screams as she falls off a cliff to her death. After she falls, she likely breaks all her bones. (Death not seen)
38. Multiple animals:
    1. They are killed when the heat from Splendid's laser eyes set the oil they are stuck in ablaze.
    2. After Splendid turns back time, the animals die from being covered in oil over time.
39. Toothy:
    1. He is killed after having his face caved in by one of the many small meteorites that forms after Splendid destroys the large meteorite that is headed for Earth.
    2. After Splendid turns back time, Toothy (and possibly many others) more than likely die from getting hit by the large meteorite. (Death not seen)
40. A bird Lumpy kept in his hat suffocated prior to the performance. (Death not seen)
41. Cuddles is in the ambulance temporarily dead until the electrocardiograph starts beeping.
42. Cuddles dies after Lumpy removes the IV that was giving him blood.
43. Lumpy dies from the explosion caused by a vial of liquid he used to create a puff of smoke.
44. Handy drowns when he fails to break the fishbowl on his head or bleeds to death due to the shards of glass in his mouth.
45. A goldfish may have died after living in Handy's mouth filled with blood. (Debatable and death not seen)
46. Fliqpy rips Mime to pieces using his theater seat.
47. Petunia's brain is popped like popcorn when Fliqpy holds her head over a flame.
48. Cuddles is killed when Fliqpy whacks him over the head, using Flaky's quills as a mace.
49. Flaky is decapitated by Fliqpy.
50. Toothy's skull is impaled after Fliqpy rams a movie projector through the back of his head, and it's likely that his brain is burnt by the extreme heat the projector gives off.
51. Lumpy has his neck snapped by Fliqpy. (Off-screen)
52. Sniffles' chest expands and bursts when the ants tie his arteries closed, preventing blood from leaving his heart.
53. Cub is cut in half at the waist by one of Lumpy's antlers.
54. Flaky is skinned alive as she goes down the slide and drowns when she sinks to the bottom of the pool.
55. Cuddles is sliced in half vertically by a section of the slide that came disconnected.
56. Nutty's head is crushed between a pair of automatic sliding doors.
57. Two birds drop dead after Petunia walks by with the Idol in tow. (Confirmed in Blurb) (Idol induced)
58. Cub is forced against a wall by a gushing fire hydrant and is crushed by the high water pressure. (Idol induced)
59. Disco Bear's head explodes when the music on his headphones becomes unbearably loud. (Idol induced)
60. Several of Petunia's organs are popped out by the springs of her mattress. (Idol induced)