|Games of appearance||Call of Duty: Black Ops|
Call of Duty: Black Ops Zombies
Call of Duty: Black Ops II
|Maps of appearance||Ascension|
Call of the Dead
- "Woah, ok, that was sour!"
- — Tank Dempsey
It has two effects, one which is the standard version of the perk Marathon from multiplayer, which gives the player twice the amount of sprint endurance. The other effect is similar to the perk Lightweight from multiplayer, but the mechanics are different. Instead of the 7% speed increase from Lightweight, Stamin-Up makes the player's weapon lighter, allowing them to sprint at the same speed as they would with a lighter weapon such as a Pistol or the Ballistic Knife with heavy weaponry such as the Light Machine Guns. Therefore, Stamin-Up is much more useful when the player has a heavy weapon rather than a lighter weapon as the speed increase is almost unnoticeable with light weapons. The color for this perk is yellow, and the icon is a man running at a high speed.
The perk costs 2000 points. It is most useful when the player will be running around the map as part of their strategy, or if they are in danger and being chased by a massive horde of zombies. Also, it is useful when attempting to defend more than one Perk-a-Cola machine during a Space Monkey round on Ascension. It is useful if one is trying to avoid George A. Romero, or revive a downed teammate. It is a useful perk to use in TranZit when running through the fog, as Denziens have a harder time trying to catch the player, and it is useful when being knocked off the bus, as one has a better chance of catching up to it.
Ascension - Located past the gates to the left of the upper spawn door. It is in the back of the alleyway past the door leading to the launch pad near the AK-74u and next to a spawn point of the Mystery Box on the left.
Call of the Dead - Behind the lighthouse and inside an abandoned house.
According to the characters, Stamin-Up has a sour taste.
The perk's name is a pun on words of 7-Up, the popular soda, and the word 'stamina'.
Stamin-Up seems to take effect even before the player drinks it, as there is a noticeable boost in walking speed when moving around while taking the cap off.
Even though the perk machine says that it is available in multiple colors, such as purple, red, orange, yellow, and green, the player can only receive the yellow colored drink.
The five colors in the machine, as mentioned above, have resemblance to Juggernog, Quick Revive, Speed Cola, Double Tap Root Beer and PhD Flopper.
The shape for the Stamin-Up perk machine has looks similar to the removed perk machine Amm-O-Matic.
According to Dempsey, Stamin-Up tastes like "lemon lime with a twist of gasoline."
The jingle for Stamin-Up is Blues style music.