Episodes/Character Pop-ups

Throughout Happy Tree Friends, the way the characters are introduced, as well as how the title sequences and closing credits are displayed, have evolved over the years, each all the more different from each other.

Season 1
Internet Season 1's introductions involve every starring Happy Tree Friend coming out of a bush, going through an animation such as a gesture (a wave), then going back into the bush and disappearing. Normally, before they appear, text appears saying "This Week Featuring...", and when all of the characters have finished, another piece of text appears saying "Almost there...", followed by the episode. All this happens while the Happy Tree Friends theme song plays in the background.

The gestures the characters make while they are visible are as follow:

Season 2-early Season 3
In Internet Season 2, all the characters are featured in a book. The book shows more characters as it flips pages. All the character are featured one by one on the pages. The background is usually the same color as the character.

The gestures the characters make while they are visible are as follow:

Rink Hijinks Pop-ups
In the episode Rink Hijinks, the character pop-ups are different from the others. The most likely cause of this is that this episode was under development before the second season, and these were the original designs for the pop-ups.

These pop-ups all have the same background, the same color, the characters are outside instead of inside the background, and their poses are different (Ex. Flaky is happy instead of worried).

Late Season 3- Season 4
These starring intros begin with the episode Wrath of Con. Starting in Something Fishy, there is also a featuring character card, which reads "Featuring a few friends:" and has the characters on a playground. Starting in Brake the Cycle, the card instead says "Also featuring:".

Each character's starring pop-up features a rhyme or an alliteration that fits in with their personality traits, in addition to almost every word beginning with the first letter of their name.

Upcoming Starring

 * Giggles G is for Giggles
 * Flaky F is for Flaky
 * Mime M is for Mime
 * Cro-Marmot C is for Cro-Marmot

Featuring Pop-ups
In the Season 3/4 Featuring pop-ups, the text will either say "Featuring a few friends:" or, in later episodes, "Also featuring:".
 * Cuddles is on the slide, both his arms outstretched, while looking down.
 * Giggles is on the slide, both her arms outstretched, while looking in the viewer's direction.
 * Toothy stretches out both his arms with his eyes facing the audience. He is not featured on the slide. However in Going Out With a Bang he is looking at the slide.
 * Lumpy just stands stupidly when he is not on the slide. His arms are down when he faces his right. His left hand is near his mouth when he faces his left. When he is on the slide, he lays upside down, with his body taking up almost the entire length of the slide.
 * Petunia stretches her arms out when on the slide.
 * Handy stands happily while looking happily at the viewer.
 * Nutty is too jittery to go on the slide. However, in Camp Pokeneyeout, he is at the top of the slide, looking and waving at the viewers.
 * Sniffles looks in the direction of the viewer, with both his arms outstretched, whether or not he is on the slide. However, in Camp Pokeneyeout, he stands with his arms down while facing his right.
 * Pop stands by the bottom of the slide. However, in Going Out With a Bang, he is seen at the top of the slide, behind Cub.
 * Cub plays happily on the slide with both arms outstretched.
 * Flaky looks in the direction of the viewer nervously, with her right index finger near her mouth.
 * The Mole is feeling around with his cane while facing his right.
 * Mime looks at the viewer while miming. However, in Random Acts of Silence, he just faces happily to his right.
 * Russell smiles at the viewer with his hook in the air.
 * Cro-Marmot stands still.
 * Lammy slides down while Mr. Pickels stands on the top of the slide. However, in Spare Tire, she holds an inanimate pickle in her arms.

Featuring Pop-ups

 * Cuddles: Waves.
 * Giggles: Waves while leaning to her right.
 * Toothy: Waves.
 * Lumpy: Stands upside-down.
 * Petunia: Waves while putting her left hand behind her back.
 * Handy: Waves.
 * Nutty: Waves while holding a lollipop with his left hand and leaning to his right.
 * Sniffles: Waves while facing to his right.
 * Pop: Waves.
 * Cub: Stands happily.
 * Flaky: Looks at the viewer nervously.
 * The Mole: Faces his right.
 * Mime: Holds up both of his hands.
 * Disco Bear: Smiles.
 * Russell: Holds up both arms while leaning to his left.
 * Lifty: Grins.
 * Shifty: Grins.
 * Cro-Marmot: Stands still.
 * Flippy: Waves.

Ending Credits

 * Cuddles turns the crank to roll the credits.

Winter Break
In this special half-hour TV episode, everyone is seen on an ornament on a Christmas tree for their starring or featuring role to fit the Christmas theme.