Dialga & Palkia

Dialga is a Steel/Dragon-type Pokémon from the Pokémon series. It is a legendary Pokémon and part of the creation trio along with Palkia and Giratina. It appears at #149 in the Sinnoh Pokédex and #483 in the National Pokédex.

Palkia is a Water/Dragon-type Pokémon from the Pokémon series. It is a lendendary Pokémon and part of the creation trio along with Dialga and Giratina. It appears at #150 in the Sinnoh Pokédex and #484 in the National Pokédex.

Dialga and Palkia are the legendary Pokémon of the Sinnoh region and appear in ancient myths as deities that were created by Arceus to create (and rule over) time and space, with Dialga controlling time and Palkia controlling space respectively. It is also said that Dialga and Palkia are never supposed to meet, otherwise, they fight each other in battle that has the potential to tear both time and space apart, due to them considering one another as an enemy.

In M.U.G.E.N, Dialga and Palkia appear under the same character, known as Dialga & Palkia, which was created by RicePigeon. Dialga & Palkia attack one at a time, meaning that Dialga will appear, use a move corresponding to one it learns in the games, disappear and then Palkia will appear, use a move, disappear and then Dialga will appear once again. When either Dialga, or Palkia uses a move, a text box intendical to the ones that can be seen in Pokémon Diamond and Pearl shows up at the bottom of the screen and has something related to what either Dialga, or Palkia is using written on it, for example, "DIALGA used Flash Cannon!", or "PALKIA used Aqua Tail!".

Gameplay
Dialga & Palkia can only be controlled by the AI, so even if the player should happen to choose the Dialga & Palkia character, they wouldn't be able to control it. When fighting Dialga & Palkia, it is difficult to deal damage on them, because they don't flinch, they disappear after using a move, and most of their attacks deal guard damage.

As of yet, you can't play as them separately or at all.