The TW Network
Shin Akuma Variations
Fighter ID:
Password
Alignment
Evil
Fighting Style(s)
"True" Ansatsuken
Hair Color
Red (True Akuma)/White (God Akuma)
Eye Color
Red (True Akuma)/Glowing (God Akuma)

Games
Street Fighter Alpha 2 / Street Fighter Zero 2 (JPN)
CPS2
Street Fighter 3: 2nd Impact
CPS-3
Selectable exclusively in the Dreamcast version by holding Start on Akuma and pressing any other button.
Street Fighter Alpha 3 / Street Fighter Zero 3 (JPN)
Playstation
Super Street Fighter 2 Turbo / Super Street Fighter 2 X (JPN)
Dreamcast
Unlockable in the Dreamcast version by fiddling with dipswitches (also available in an even more powerful version sometimes called "Tien Akuma" or "Ten Akuma") and in the Game Boy Advance version by more conventional "time release" methods.
Capcom vs SNK 2 / Capcom vs SNK 2: Millionaire Fighting 2001 (JPN)
Naomi
SVC Chaos: SNK vs Capcom
Neo Geo
Capcom Fighting Evolution / Capcom Fighting Jam (JPN)
Arcade
Unlockable.
Tekken 7
Unplayable
Ultra Street Fighter 2 / Ultra Street Fighter II
Unlocked by selecting the following characters and then canceling the selection while highlighting specific color palettes: Ryu Color 1, Ken Color 9, Sagat Color 8, M. Bison Color 7. Then, choose random select whilst holding L + R.

Storyline
Capcom vs SNK 2
Capcom vs SNK 2 Endings
As the sun rises in Osaka City, where is Shin Akuma? There're some who believe in a "martial arts god" who disappeared into the fire, but will one day return...