The Darker Than Dark is a Keychain for Roxas's and Xion's Keyblades that appears in Kingdom Hearts 358/2 Days. It can be upgraded to the Darker Than Dark+.
The Darker Than Dark has a pink handle and a rectangular, lilac guard with long spikes on each of its corners. The long shaft is dark purple, has concave edges, is decorated by two indigo diamonds, and ends in a spike resembling those on the Nobody symbol. The lilac-colored teeth are shaped like a large arrowhead. The Keychain token is a diamond resembling the Keyblade’s teeth. This Keyblade and the True Light’s Flight are palette swaps of each other.
The ground combo is three hits, The first is a vertical upward slash from the left leg, followed by a long rush forward with a diagonal spinning slash, and ends with a lightning-fast array of two horizontal slashes, first to the left then to the right, and a vertical downward slash. The aerial combo is a horizontal slash to the left, then a horizontal slash to the right, it repeats those two movement once each, and ends with a spinning slash. You can also end it after the initial two horizontal slashes and it will end with a diagonal vertical slash from the right shoulder.
 See also