The pilot episode created in 1999 featured early versions of Lumpy, Giggles, Cuddles, and Toothy. A dinosaur plays a banjo, while a squirrel, rabbit, and beaver sit down and watch. One of the dinosaur's banjo strings breaks, making the onlookers laugh. Enraged, the dinosaur decapitates the squirrel, vertically slices the rabbit in half, and decapitates the beaver. All of a sudden, the beaver's severed head comes back to life and bites the dinosaur's leg, causing the dinosaur to scream in pain.

A reporter interviews Cro-Marmot. She asks questions to him, but all to no response due to Cro-Marmot being frozen. They then run out of time, and as the credits roll, the reporter fumes over getting no response.

An animated short film featuring the character Cro-Marmot in prehistoric times. It features him eating a dead dinosaur. However, he mistakenly bites on the tail of a living tyrannosaurus. The angry tyrannosaurus then proceeds to attack Cro-Marmot by tearing him to shreds. Cro-Marmot escapes but then gets eaten by a giant pterodactyl.

Remains to be seen blurb

Cuddles suffers a seizure while playing a video game with Lumpy. Lumpy tries his best to help, but only makes matters worse.

Pop tells Cub to do his chores, but Cub experiences some problems. Meanwhile, Pop takes a fancy to Cub's video game. Although he ends up liking it a little too much...

Warm your hearts on these chilly winter nights by having our cute cast of Happy Tree Friends characters sing you a Holiday carol.

Warm your hearts on these chilly winter nights by having our cute cast of Happy Tree Friends characters sing you a Holiday carol.

HTF characters go to the theaters to watch a film for the new year, little did they know there was a deadly surprise waiting.

Flaky gets lucky when she finds an empty seat in the theater, but her luck soon runs out.

Lumpy mops the floor but forgets to put up the wet floor sign - until Sniffles comes along.

Nutty gets a nice good ol' sweet snack, but the snack seems inappropriate for his teeth.

Cub finds out that too much popcorn is bad for him.

Giggles wants some butter for her popcorn, only for her to end up "buttered".

Shifty decides to eat some pizza while its hot, but he should've let it cool down before attempting to eat it.

Mime is enjoying the movie with his cup, but The Mole wanted a seat in a row behind Mime.

The claw machine wants Cuddles, but only to hurt him.

Operation: Tiger Bomb is the first episode of the W.A.R. Journal story line and is the first episode of the action spin off Ka-Pow!.

Three Courses of Death is the first episode of the Buddhist Monkey story line and the second episode of the action spin-off Ka-Pow!.

Mirror Mirror is the first episode of the Splendid's SSSSSuper Squad story line and is the third episode of the action spin off Ka-Pow!.

Books of Fury is one of three episodes starring Buddhist Monkey, a character that is special within the Happy Tree Friends universe.

Enter the Garden is one of three episodes starring Buddhist Monkey, a special character under the Happy Tree Friends banner. The cartoon was included with the "Happy Tree Friends: Second Serving" DVD dated October 14, 2003, and it was posted online March 19, 2009.

Too Much Scream Time is an irregular episode in the Happy Tree Friends series.