Gauntlets

Gauntlets are 2 components representing the arms and fists of the Guard Armor, the Red Armor and the Powered Armor and the legs and feet of the Opposite Armor. These are found in Kingdom Hearts, Kingdom Hearts: Chain of Memories, Kingdom Hearts 358/2 Days, Kingdom Hearts coded and the Final Mix (disambiguation) Gauntlets are found separate only at the Olympus Coliseum and are found with the rest of their pieces at Traverse Town and Olympus Coliseum.

Kingdom Hearts
The first Gauntlets attacks Sora right after he meets Donald Duck and Goofy and they slay a gang of Soldier Heartless. It and the rest of the Guard Armor is the leader of the Traverse Town Heartless, and after it is defeated, the local Heartless temporarily calm down.

Later, Sora tests the legend about the Second District bell by ringing it three times, and the world's Keyhole is revealed within the district's fountain. However, as the group goes to seal it they are attacked by a second pair of Gauntlets along with the rest of the guard armor, and though they defeat them, they transforms themselves into the stronger Opposite Armor gauntlets and attack again. After it is destroyed, they are able to seal Traverse Town's Keyhole.

Kingdom Hearts: Chain of Memories
Sora explores the memory version Traverse Town within Castle Oblivion and meets Cid, who warns him that a giant Heartless is said to appear when the Second District bell rings. Just as it did before, the bell rings, and the Guard Armor suddenly appears. Sora defeats it, and Leon, Cid, Yuffie, and Aerith see him off to the exit.

Another Guard Armor appears in Riku's version of Traverse Town, but this one is simply a manifestation of the darkness in his heart, and is quickly defeated.

Kingdom Hearts 358/2 Days
Roxas is dueling Xigbar in the Olympus Coliseum Games when a Guard Armor interrupts. Xigbar steps out to let Roxas defeat the Guard Armor on his own, and while fighting it Roxas has flashbacks to when Sora fought the Guard Armor in exactly the same manner. However, the Guard Armor is soon defeated, and Roxas "wins" the Games.

Kingdom Hearts coded
When Data Sora opened the Data Keyhole of Data Traverse Town, he fought Data Guard Armor, which happened to be the source of Block corruption in Data Traverse Town.

Guard Armor
Guard Armor Gauntlets are violet coloured armoured fists that have 4 silver fingers and a yellow band at the centre end of the Gauntlet pair and the Gauntlets are often with the rest of the Guard Armor.

Red Armor
Red Armor Gauntlets are magenta coloured armoured fists that have 4 light-grey fingers and a silver band at the centre of the Gauntlet pair and the Gauntlets are often with the rest of the Red Armor.

Opposite Armor
Opposite Armor Gauntlets are violet coloured armoured feet that have 4 silver toes and a yellow band at the top end of the Gauntlet pair and the Gauntlets are often with the rest of the Opposite Armor.

Powered Armor
Powered Armor Gauntlets are Purple coloured armoured fists that have 4 grey fingers and a black band at the centre of the Gauntlet pair and the Gauntlets are often with the rest of the Powered Armor.

Final Mix (disambiguation)
Guard Armor and Opposite Armor in Final Mix are instead of being violet they are white with a blue rim and 4 dark-grey fingers/toes.

Strategy
When fighting as their own, Gauntlets do two things. One attack they do is spinning around trying to hit Sora, Goofy and Donald. The other attack the Gauntlets us is to punch Sora, Donald and Goofy. When the Gauntlet is part of the Opposite Armor it can be separated into 2 groups and the Gauntlets are with the Armoured Torso and the Hammerlegs are with the head.