He tests the extent of the commands

"Let's see what happens if I just say one of their names. Tsunade, act like a robot."

Tsunade, and just Tsunade, got to her feet, arms at her side, staring off blankly.

"Hokage-bot ready to obey," she droned.

So it would work on just one if Naruto said just one name. All right, good to know.

"Okay, Hokage-bot," said Naruto, a grin on his face. "Eat out Shizune."

"Order received," droned Tsunade. She mindlessly marched to her assistant and began to lap at her pussy, Shizune remaining limp.