The "Master of the Fist" trained with his brother Gouken. In time Akuma would kill Gouken and work to persuade Gouken's pupil, Ryu, to be seduced by the Satsui no Hadou. Akuma is very secretive and constantly in pursuit of a true opponent to face in battle.
In a nutshell
Akuma returns in Ultimate with a game play very similar to what was seen in the past. Playing as Akuma depends on getting in close through the use of his varied special attacks and looking for strong mix-up opportunities. Although Akuma does relatively high damage, his low life means that he can be removed from the game fairly easily if used recklessly. Akuma is most known for his Tatsumaki Zenkuyaku assist, though hit stun has been modified since the previous installment of Marvel vs. Capcom 3, which means the point character will need to have a faster reaction time.
Throws are an important part of Akuma's game. Off of any throw, front or back, air or ground, you can instantly do an air Charged Messatsu Gouhado with , + + . This will OTG for big damage.
Akuma's teleport is extremely useful, especially when combined with assists that hit repeatedly as he passes through you and changes sides.
Akuma's overhead Chop can be special cancelled, which means you can score a launcher with the button into huge damage.
Fireball- Terrible. Don't use it.
Tatsu- One of the best assists in the game. Fantastic for rushdown characters since it locks them down.
Dive Kick- Not too bad, but since Tatsu is so amazing, this will never be used.