|Intro||Good to Evil|
|Signs of nearing||Breathing and Evil laugh|
|Origin||Happy Tree Friends|
Evil Flippy (Or Fliqpy) is a boss in Slender Fortress.
Evil Flippy is the evil side of Flippy, and appears after Flippy himself sees/hears anything that reminds him of war. Once this happens, he usually kills every other character nearby, sometimes in a torturous fashion. At first it was believed that Flippy was doing all the killing consciously, but it was later revealed that he and Evil Flippy are different characters inhabiting the same body. He has the 2nd highest kill count in the series, rivaled only by Lumpy, who has over 300.
Flippy's body features change when he flips out, including his teeth becoming sharp, his eyes turning into a different color, and his voice growing deeper. His breathing also becomes raspy and angry-sounding and he has a deep, malicious laugh. These body features weren't fully explored in the first internet season, where he was closer to his non-evil appearance despite being flipped out. This evil state of Flippy is almost always induced by post-traumatic stress from his days at the war. On much lesser occasions, such as Happy Trails Pt. 2: Jumping the Shark and Random Acts of Silence, Flippy can also turn malicious from anger and stress.
In Double Whammy Part I and Autopsy Turvy (Double Whammy Part II), he appears as a separate entity. In
Double Whammy Part I, he appears at the end where he dive tackles Flippy. In Autopsy Turvy (Double Whammy Part II), he fights Good Flippy (Normal Flippy) throughout the episode and eventually captures and tortures Good Flippy. It is revealed during the fight that Flipqy wasn't physically there and that the events of the episodes were really just Flippy attacking himself. At the end, an army of Good and Evil Flippys fight each other, the only survivor being Good Flippy (who is hit by a truck soon afterwards). This doesn't mean that Flippy won't flip out again in other episodes, as he died straight after he got cured. However, in Without A Hitch, he didn't flip out when he logically should have (e.g. seeing Flaky with a bunch of glass shards in her face). The possibility that he was permanently cured was been proven false in On My Mind.
Since Autopsy Turvy and Operation: Tiger Bomb revealed that Evil Flippy is a different character from Flippy, their actions and consequences are only caused by the one controlling the body at the time, meaning that Good Flippy can't be blamed for all of the murders. Like his counterpart, Evil Flippy rarely dies, but when he does his deaths usually involve trucks, Lumpy or explosions.
In Slender Fortress Edit
Evil Flippy in a unstoppable non cannon boss, he can't be stunnable untill he has a few of sharp teeth.