DDT is a throw used by King I, Armor King, Roger and Alex from the first game and onwards. Armor King II uses it since Tekken 5: Dark Resurrection.
In Tekken 2, King performs the Falling Headlock, which is a more powerful and better looking version of the DDT; however the other three characters still retained the original throw.
King II would receive 4 variations of this move: since Tekken 3, he uses a jumping tornado DDT called the Winding Nut, the Falling Headlock, he would do it as part of a combo following a counter-hit to the Konvict Kick move since Tekken 4, and in Tekken 5, he does it as part of a combo to his Front Kick.