He'll take that as an affirmative, practically moving simultaneously as Li does. Donatello leaps and slides over the hood of another car, wincing at the lingering heat. The fire that's engulfed the one car is still large enough that he can feel the considerable difference in the temperature from where he'd been standing and where he goes now.

The fire hydrant in his focus, he trusts Li to do her part while he closes in. He brings his bo over his head as it glows to form one of his most preferred alterations, a huge mallet. Down he swings it, the hydrant's nozzle showing little resistance as it knocks it clean off, water gushing forth immediately. The water knocks away another person as they make a lunge for Li, and Donnie makes use of his mystic tech to create something of a funnel as he hops up on top of the fire hydrant, shifting it back and forth to wash out the other threats.

"Li, fall back!" he calls out towards her, not wanting to catch her in the process.