I'm primarily a lightroom user, but play around in Bridge sometimes if I want to work on a file on multiple computers.
You can host ACR from Bridge directly (go into Preferences > General > "Double-Click Edits Camera Raw Settings in Bridge"), do your ACR edits and click "Done".
Then open the files in Photoshop by selecting them all and clicking Tools > Photoshop > Load Files into Photoshop Layers...
Mike