Jade is identical to her Ultimate Mortal Kombat 3 form. She doesn’t gain any new move or animation.
Jade use her staff and her boomerang along with her fist. She has four variations of her Boomerang. She can throw toward the top, in front of her and toward the bottom. Her fourth variation called “Boomerang Return” or “Second Chance” will cause the Boomerang to return in Jade’s hand, possibilities hitting the opponent. However, this will only happen if she misses the opponent. Like in MK2, she can be immune to the projectile. However, in UMK3 and MKT, it requires an input (like a special move) and will make her invisible for a few seconds. Finally, she borrows Johnny Cage’s shadow kick and perform it faster than he does, but it goes less father.
Against the CPU, Jade has a good advantage. Her combo is devastating and good timing with the Projectile Invincibility will give her the edge, including against the bosses. It is also possible to abuse the CPU’s AI by throwing a High Boomerang as far from it as possible and perform the move over and over. With a good timing, it is possible to defeat every non-boss opponent since they will always attempt to jump over it (like they do for most regular projectiles). Like the other female ninja, her throw is very fast and can be spammed until you get higher in the tower.
As a side note, Jade is infamous of how difficult fighting against her his when she is controlled by a CPU. The main catalyst is the fact that in most scenarios, she will immediately use her Projectile Shield as soon as you throw a projectile. The player doesn’t have time to recover and CPU Jade will either perform her big combo or throw you. She is also able to perform the move again and fast, unlike the player who has a delay. This trait is also present in UMK3 and its ports but was toned down for the CPU in later MK game she appeared.
TAS tools were used to make this high quality playthrough video.