Unicorn

The Unicorn is one of the mythical creatures unleashed in the Red Dead Redemption Undead Nightmare DLC pack.

Description
The Unicorn seems to be a version of the Hungarian Half-bred horse with the addition of a horn and cloven hooves. It also has a permanent halo of butterflies and leaves a rainbow trail in its wake as it gallops. It has unlimited stamina, and is extremely tough. It can take an almost endless amount of shots to the side or even cannon fire, however, it still drops dead when shot in the head or after falls from a high cliff. The unicorn is the fastest mount in Undead Nightmare.

Location
The Unicorn can be located in the fields northwest of Torquemada after the player has killed the Chupacabra. The Chupacabra can be killed after you have completed the first four Undead Hunter Challenges and have broken the four Horses of the Apocalypse. Note that the blue circle will not appear on the radar to indicate its location, and the mythical creature warning text will also not appear; however, the Unicorn's coloring makes it very easy to locate.

Glitches

 * If you shoot a unicorn constantly and then ride it, it will twist and turn and fly away, and occasionally if you whistle again, it may fly back and go through the ground. Another way is to kill it and keep shooting it when it's on the ground. Also, if you ride it off a cliff and it dies, it will then twist and turn about and bounce around. Strange, indeed.
 * If you shoot the Chupacabra but do not kill it, the unicorn can occasionally appear and be tamed; however, it will not return to you if you whistle for it, even if it has been hitched.
 * Sometimes the unicorn, when not tamed, will disappear and can't be found for quite a while. This is also reported to happen with Famine and Pestilence.
 * If you throw a tomahawk into the unicorn, it will glitch into a bizarre animation and fly away, discovered and/or shown in a RoosterTeeth youtube video. (If you shoot him while he is flying with the Explosive Rifle, he will disappear).

Trivia

 * The Unicorn in heraldry appeared as a white horse with a billy goat's beard, a lion's tail, leg of a stag, a slender and long twisted spiraling horn projecting from its forehead.
 * The Unicorn can be differentiated from other undead mounts by the pure white coloring, and the rainbow trail that follows behind it. When at a standstill, butterflies emerge from underneath, similar to Famine's swarm of locusts.
 * Sometimes the rainbow trail and butterflies will disappear, making it look like a normal horse. However, the horn will never disappear.
 * If you look closely, you will notice that the Unicorn has cloven hooves like that of a deer. In the original legends, the unicorn was an Artiodactyl, or Even-Hoofed Ungulate. These include deer, goats, and antelopes.
 * When killed, the Unicorn will appear to have bugged physics and fly randomly about until it disappears. After a while you can whistle to get it back.
 * The Unicorn, like all other mounts in Undead Nightmare, cannot be skinned, but it can be looted for a Unicorn Horn and Unicorn Heart.
 * The Unicorn also does not have a Blood Pact for quick summoning. If the Unicorn dies, it can be called over and over again as long as the player does not use the blood pact for any other horse or decide to break and hitch another horse.

Video
thumb|300px|left|Fan Service Achievement / Trophy Guide - Where to find the Unicorn

Achievements/Trophies
Finding and breaking a Unicorn will contribute to the acquisition of the following Trophies/Achievements:

Unicornio