This item can be purchased at the Mann Co. Store or found randomly via the drop system. When the player holds down the action button, their character will enter one of two class-specific poses with the right hand held up high. Any nearby ally can then stand in front of the player and initiate a dual animation by activating their own High Five! or standard taunt. Only the initiator needs to have the item equipped in order to successfully complete the action.
If the High Five! is initiated with insufficient space to perform the co-op taunt, such as a map height difference or obstacle in front of the player, the taunt will not initiate and a message will appear on the HUD informing the player of why they cannot taunt.
Other nearby friendly players will receive a tutorial-like prompt on their screen the first time they see an ally initiate a High Five informing them of how and where to accept it.
Although not an intended use, being able to stay in third person camera mode of waiting High Five! pose indefinitely by holding the action button allows for looking around corners and obstacles without exposing oneself.
- High Five! was added to the game.
- Fixed high five taunts applying the wielded weapon's taunt effect.
- Fixed being able to cross into enemy spawn rooms using the high-five taunt.
- Fixed a server crash related to The High Five taunt.
- Remove text displays "... walks into a bar" upon high five taunt completion.
- If the command
mp_usehwmvcdsis set to 1, certain classes will not have their High Five! animations play. Instead, they will be stuck in the idle animation for their current weapon for the duration of the taunt.
- If two players use the item while standing on an Engineer's Teleporter Entrance, both will be teleported.
- Taunting while using the Sandman or Wrap Assassin will cause the ball/bauble to disappear in client view.
- On occasion, a player will appear to be stuck in the High-Five position after holding the taunt between rounds. This hinders gameplay in that the hitboxes do not correspond with the model.
- The particle effect created by the High Five! where the two participants' hands collide can occasionally be seen through walls.
- The animations for the High Five! taunt have existed within the game files since the WAR! Update.
- Additionally, there are some unused animations that exist within the game files for the Horseless Headless Horsemann suggesting that high-fives originally had a chance of failing to be executed correctly at one point in the taunt's development. Two animations exist in which the Horsemann swings his arm and supposedly misses the partner's hand. The first animation consists of the Horsemann crossing his arms, bending back, and shaking his head in a disappointing manner. The second one consists of the Horsemann pointing at the partner and thrusting his middle finger upward in a rude manner. Since these animations are for the Horsemann, the Demoman could have used the same animations if these factors made it into the game, since they both share the same base animations.
- Bots are able to detect high fives and will return them should a human player initiate one.
- The High Five! comic "Hey Sniper!" features the Sniper who, faced with a dilemma, kicks down a chair in frustration while consulting a Mann Co. Catalogue before discovering the High Five! product. This scene is in fact a reworded copy of a panel from "The Insult That Made a 'Jarate Master' Out of Sniper", where the Sniper, angry from being picked on by men his own size, kicks down a chair in frustration before discovering Jarate from a Mann Co. Catalogue.
- Like some other things in the game, the real-world equivalent of the High Five! did not come into widespread use until several years after the game takes place.
- Using the High Five! while wearing the Barely-Melted Capacitor caused a message to appear in the chatbox during the Pyromania Update, which varied from class to class.