ｆｌａｒｅ－ｐｕｎｃｈ！

The Flare Gun is an unlockable secondary weapon for the Pyro. It is a single-shot, team-colored flare gun with a flared barrel.

The weapon fires low-damage flare projectiles that travel at approximately 2000 Hammer units per second (roughly 38 m/s or 125 ft/s). The flares have a shallow trajectory curve that causes them to drop vertical distance drastically at long range. Enemies hit by the flare take minor damage and are set on fire. The damage dealt is not subject to damage falloff or ramp-up from distance. Additionally, flares deliver Critical hits on targets who are already on fire. Unlike most other weapons that require reloading, the Flare Gun is reloaded even if the player switches to a different weapon before the reload animation plays.

The flare disintegrates on contact with any surface, or with flares fired by the opposing team, with a hissing noise. While the weapon cannot be fired while the player is underwater, the flare can damage (but not ignite) submerged enemies if fired from land.

Taunting with the Flare Gun equipped results in the Hadouken kill taunt.

The Flare Gun is automatically given to any player who obtains 10 Pyro achievements.