Definitely. 'Dattebayo' is a common phrase used by Naruto throughout the manga to add emphasis or express his determination. It's become an iconic part of his character.
The fox's communication in the manga could be anything from growls and yelps to more complex sounds that are part of the story's unique world-building.
It depends on the specific context and characters. Sometimes they might follow your instructions, but often there are plot twists and character decisions that complicate things.