*I'll add more secrets next time*

Marvel vs. Capcom

How to fight against each hidden character(once beaten, you can play as them too)

Lilith
* Never lose a character
* Finish the second and third challengers with a team switch move
* Finish off all characters using regular supers

Gold War Machine
* Never lose a character
* Two of the supers must be a cross over variable attack
* Finish five opponents with a super

Orange Hulk
* Never lose a character
* Use at least three other types of finishes
* Use at least three team up super finishes
* Use at least two Variable Cross finishes

Roll
* Use at least three other types of finishes
* Never lose a character
* Use up all your partner stock
* Use at least two Variable Cross finishes

Red Venom
* Never lose a character
* Use at least two hyper combos
* First Attack every match
* Use at least four tag team specials

Shadow Lady
* Never lose a character
* Use Variable Cross finishes Every match
* Use up all your partner stock
* First Attack every match

to play as Onsluaght
Just unlock all the hidden characters

Street Fighter Alpha 3

Play as Shin Akuma
higlight Akuma then hold down start and any button

play as Super Bison
beat game on lv. 8 and then highlight him and hold down start and any button to use him

to fight Shin Akuma with anyone
in final battle mode hold all 3 punches and all 3 kicks when selecting speed

Marvel vs. Capcom 2

Blow up Tyrant
Using Jill call up Tyrant then when he's about to be done, fires the missles and he should blow up

make the tower fall!
Using Hulk in the clock stage, beat 2 of the opponent' s characters, and on the last one fight him/her till the chraacter have a very low life*1 hit left to kill* get the opponent's character stand where the big clock is or nearby and Use the Gamma tornado to throw the opponent to the far right hand side to finish him/her off...and then you will see that the opponent smashes into the tower and the tower crashes down to the ground. YOu can do the same using Venom, just use his Venom web super in place of Hulk's Gamma tornado. I bet most of you know it already, but for those of you who don't.........try it. I found out how to do it myself.

Street Fighter 3: Third Strike

To play as Gill
Beat the game with everybody without cheating(using system direction), he should be above yung and below yang when your done

Extra taunt: Using Hugo Press Up + taunt during a round

Capcom vs. SNK

To play as Akuma
Unlock every other character including the secret and Ex versions of each characters