How do you get black ops arcade on xbox 360?

You can't get "Black Ops Arcade" on Xbox 360 because it doesn't exist!

It sounds like you might be thinking of one of these:

* Call of Duty: Black Ops (2010): This is a full-fledged game that features a single-player campaign, multiplayer, and zombies modes. You can find it on Xbox 360, and it's probably what you're looking for.

* Call of Duty: Black Ops II (2012): This is the sequel to the original Black Ops. It has similar features and is also available on Xbox 360.

To get either of these games:

* Check for pre-owned copies: You can find used copies of both games online or at game stores.

* Use the Xbox Marketplace: You might be able to purchase digital versions of these games through the Xbox Marketplace, although they may not be available for purchase anymore.

If you can provide more details about what you're looking for, I might be able to give you a more specific answer.