The Hydro Hand is a move learned by the Ninja.
This move allows the user to shoot a hand made of water. He used it to make the floor slippery so he could move an arcade game with ease with combination of Air Fist.
- This is one of the only moves that Randy isn't seen learning, as he either learns it off-screen in the NinjaNomicon or already knows it in "Happy Hanukkah, Howard Weinerman".
- This move is similar to the Air First.
- This is the first Ninja technique Randy learned without any trouble.