In the Happy Tree Friends segment "Remains to Be Seen", a majority of the main HTF cast become a group of Zombies that Lumpy must combat if he wishes to survive the night.
As the group makes their way to the next Trick-or-Treat destination, Flippy has a flashback while driving a truck carrying barrels of nuclear waste. In his deranged state, Flippy hits the accelerator and crashes the truck into the Trick-or-Treating crowd. They all perish as the barrels of nuclear waste spill around them. Lumpy, being a graveyard digger and caretaker in this short, buries the corpses and prepares to leave for the night.
Due to the nuclear waste, the cast rise from the grave as zombies, scaring Lumpy who attempts to remove them through reburial and severing their undead bodies with a lawnmower. However, his lawnmower is stopped by the reanimated and bifurcated Flippy who attacks Lumpy, eventually biting his hand off. In a parody of Evil Dead 2, Lumpy replaces his lost hand with a leaf blower (while intending to affix a chainsaw to his wrist). However, the leaf blower jams into one of the zombified Flippy's eyes, causing his brain to comically inflate. The oversized brain naturally draws the attention of the other zombies and the zombified Toothy takes a bite. The ensuing pop destroys the zombies, (with the exception of The Mole) saving Lumpy in the end-save for his hand that reanimates and attacks him and knocks him out cold.
As the credits roll, a silhouette of The (still-zombified) Mole can be seen blindly walking on the horizon.
For the most part, the Zombies behaved as general zombies tend to do with shuffling and moaning. Most of them also shared the craving for flesh-particularly noted and parodied with the zombified Cuddles and Giggles eating intestines Lady and the Tramp style.
Zombie Flippy, however, was an anomaly. Still stuck in his deranged form, Flippy seemed less concerned with satiating a desire for flesh and more with killing Lumpy. He also showed signs of his general resourcefulness, such as how he fixed his bifurcated state by splitting another zombie in half and taking his legs. However, his tendency to attack on sight brought on his undoing.
- The crest on Flippy's beret switches places twice.
- When Mime becomes a zombie, the wrong half of his head is missing; the crash that cut his head took off the right side, not the left.
- While a zombie, the blood on Handy's hard hat disappears and the left horn is broken instead of the right one.
- The missing part of Petunia's face changes places when she walks toward Flippy.
- When the truck crashes, Petunia and Handy lose one of their legs. But when they are revived, they both have two legs.