Asura (Samurai Showdown)

Asura is the main protagonist of Samurai Showdown 64: Warriors Rage alongside Shiki, he's occasionally depicted having eight black wings in various appearances (though they are never shown in actual gameplay).

Story
He is a being who has a long-standing conflict with Yuga the Destroyer, who wreaks havoc in order to bring about "the unification of this world and the Netherworld". Yuga imprisoned Asura in the Netherworld and he subsequently escapes when it is defeated during the events of Samurai Shodown 64. When he confronts Yuga, his clone, Shadow Asura, assists him in slaying the fiend. They fuse themselves together so that his clone could survive.

Later, in Samurai Shodown: Warriors Rage, Asura is revealed to be a shade of the real Asura. His clone was the one who retained the original's memories; this Asura only kept the original's abilities and his animosity for Yuga.

Samurai Showdown Appearances
Samurai Shodown VII

Asura returns as a playable character on this installement.

Crossover Appearances
Neo Geo 2: Match of the century

Asura returns to the coliseum facing Samurai Showdown series alongside Haohmaru, Nakoruru, Charlotte Christine de Colde, Earthquake, Shiki and Genjuro Kibagami (This last one as DLC).

Project X Zone 4: Fate at Hands

Asura appears as a Pair Unit teaming up with Shiki.

Divine X Union

Asura appears as a Pair Unit teaming up with Shiki.

Soul Calibur X SNK

Asura is part of the SNK playable characters cast.

Capcom vs SNK 3: Fighters' Spirit

Asura is part of Samurai Showdown cast alongside Haohmaru, Nakoruru and Shiki.

Sega vs. SNK: Black Sun

He is one of the characters available from the beginning.

Neo Geo Pocket Battle Colosseum

He is one of the Samurai Showdown characters alongside Haohmaru, Genjuro Kibagami, Nakoruru, Shiki, Sujia Sogetsu and Mizuki Rashojin.