Change Order of Opponents
Before choosing your character, hold L or R and press START.
Play as Evil Akuma
In the "Player Select" screen highlight Akuma hold start and then press: Down, Down, Right, Down, Right, Down, Down, Down, Left, Down, Left, Down. It will finhish in Akuma (you must stay holding Start all the time) them you just have to select him.
Play as Evil Ryu
At the character selection go to Ryu and press Start, then go Right, Up, Down, Left. To finish, press and hold Start then press any punch or kick button.
Turbo Buttons
Go to Training or Versus mode. Press R + L + START when selecting your character and hold these buttons until the fight starts. You'll notice that if you hold Punch, you will punch repeatedly; hold Kick and you will kick repeatedly, etc. This doesn't work in the Arcade or Survival modes.
Change Order of Opponents...