Air Combos:
  Use a character's high punch or kicks near an enemy unit .. until he is up in the air, then jump up to him using 2 low punch, a high punch or a high kick...

Costume Change:
 L1 Or R1 when selecting a character (must purchase color changes in secret factors)

Taunt Characters:
 Press Select

Akuma's Demon Rage:
 x2 Low Punch, Right, Low Kick, High Punch

Hyper Gauge:
 [ L1 + L2 ] Require 3 gauge bars