In addition to Ctrl+Click, you can also click on the first in a sequence and then Shift+Click on the last in a sequence to open the entire sequence, or you can drag a selection rectangle around the images you wont to open.
Once you have multiple images open in ACR, you can either edit one and then use the Sync button, or you can select multiple images (same as you did from bridge), and directly edit them all at once. You have to be a little careful with this approach though, if the shots have different values for some settings and you're just wanting to update some of the settings. If some of the images selected have different values for a setting it will show as blank, but as soon as yo click on that setting all images will get the value of the 'focused' image (ie the one that's on display in the preview and has a bold selection rectangle around it in the list).
