Dimension Link

The Dimension Link is a new feature that will be available in the upcoming Kingdom Hearts Birth by Sleep. To use the D-Link system, you must add the it as an attack into your customized deck of attacks and can only use it when your D-Link (or Dimension Link) gauge is full. The D-Link gauge is blue and next to the HP meter. The gauge is also used in Mode Changes. You fill up your D-Link gauge by obtaining dropped blue prizes from enemies like obtaining Drive Orbs to fill your Drive Gauge in Kingdom Hearts II.

Once you have summoned a character, it changes the Command Menu gauge that is also used for Mode Changes to show how long your companion stays on the field and the face of the companion you’ve linked to will show up on the bottom right of the screen. By linking to them you will get more powerful, and be able to use unique Finish moves which have two different power up levels.

So far, it has been said that the TGS trailer has shown Ven with Experiment 626, Terra with Cinderella, and Aqua with Mickey in his uniform from The Sorcerer's Apprentice.