Where does say play at in transformers?

It's not clear what you mean by "say play" in Transformers.

Could you clarify your question? Are you asking:

* Where is a particular character's home base in the Transformers universe? (e.g., "Where does Optimus Prime play?")

* Where does a specific Transformer play a role in the story? (e.g., "Where does Bumblebee play an important role in the Transformers movie?")

* Where is a particular Transformers movie or show filmed? (e.g., "Where does Transformers: Age of Extinction play?")

Please provide more information about what you're asking so I can give you a helpful answer!