Jade is a childhood friend of Princess Kitana. While her motives were unclear, she served Shao Kahn alongside Kitana and Mileena as his personal assassin for most of her life. When Kitana finally turned against Shao Kahn, Jade was ordered to capture her for the Emperor. She ultimately chose to join her friend, and has since loyally assisted Kitana in her quest to free their native realm and restore its original beauty. Now residing in the freed Edenia, Jade is a General of the Edenian Army and continues to dutifully serve Kitana and her mother Sindel.
Jade's confident, self-assured and sassy personality was first thoroughly portrayed in her Girls Gone Wired campaign video, but later expanded upon throughout her story in Mortal Kombat (2011). Always known for her loyalty towards Kitana, she has proven herself to be a dependable, sincere and devoted friend to the princess. She is sarcastic, patronizing and cocky towards her opponents, and incredibly ruthless and towards those she considers a personal enemy (at one point splashing Tarkatan essence on the Edenian traitor, Tanya, and allowing her to be torn to pieces by Baraka's militia).
As a female assassin adorned in a green skin-tight outfit, Jade was initially very similar in appearance to Kitana and Mileena, the only noticeable difference being her darker skin. She appeared first as a hidden, unplayable character in Mortal Kombat II whose moveset were mostly like Kitana's including the use of the fan blade weapon, only a golden instead of silver. To reach Jade, the player would fight a one-player game on the match just before the "?" on the map of the mountain. If the player won at least one round of the match using only the Low Kick button (no punches, High, or Block button presses), they would immediately be warped to Goro's Lair to fight Jade. The player did not have to win the match -- only one round -- to fight Jade.
Jade would later become a regular character in Ultimate Mortal Kombat 3. Her main weapon of choice is a metal staff, but she also uses razor-edged boomerangs (dubbed "razorangs") as well.