Sydney (2003 TV series)

Quarry was once a human woman named Sydney who was captured by the scientists working for Oroku Saki and the Foot. In her mutated form, she had the ability to scale walls, spit corrosive acid, and also had an elongated tongue, which she used to catch little leech-like bugs out of the air to consume. While being extremely well-equipped to face any natural emergencies, she seemed to be completely terrorized by the mysterious Entity in the Underground City. She appears in the 2003 series and as a boss in the 2003 video game. After spending so many weeks in captivity with the other mutants, with all of them tricking the foot scientists into thinking, they had regressed into mindless beasts, the creatures instigated a jail break. Though it was never shown how it happened, the creatures somehow managed to remove their shock collars and unleashed their full fury on their captors.

The escape was bittersweet however for aside from Quarry and two others (Stonebiter and Razorfist), the other mutants were mentally unstable as a result of their genetic mutations and turned on their former allies. The three mutants were able to defend themselves with the recovered crystal from the catacombs which acted has a powerful force shield for the base and who's healing aura made sure the remaining mutants did not become insane themselves.

Quarry was later returned to normal by Donatello. Donatello realized that the crystals could be turned to a liquid by super sonic vibrations. Donatello turned this liquefied crystal into a shot and gave it to Quarry and the others and returned them so the surface.