Marvel vs. Capcom
Clash of Super Heroes

Fight as Lilith:
Highlight Zangief at the character selection screen. Then, press Left(2), Down(2), Right(2), Up(2), Down(4), Left(2), Up(4), Right, Left, Down(4), Right(2), Up(4), Left(2), Down(4), Right, Down. Lilith will appear below War Machine.

Fight as Roll:
Highlight Zangief at the character selection screen. Then, press Left(2), Down(2), Right(2), Down(2), Left(2), Up, Right, Up(2), Right(2). Roll will appear to the right of Mega Man.

Fight as Shadow Lady:
Highlight Morrigan at the character selection screen. Then, press Up, Right(2), Down(4), Left(2), Up(4), Right(2), Left(2), Down(2), Right(2), Down(2), Left(2), Up(2), Right(2), Up(2), Left(2), Down(5). Shadow Lady will appear below Gambit.

Fight as Red Venom:
Highlight Chun-Li at the character selection screen. Then, press Right, Down(4), Left, Up(4), Right(2), Down(2), Left(2), Down(2), Right(2), Up(4), Left(2), Up. Red Venom will appear above Chun-Li.

Fight as Orange Hulk:
Highlight Chun-Li at the character selection screen. Then, press Right(2), Down(2), Left(2), Right(2), Down(2), Left(2), Up(4), Down(2), Right(2), Up(2), Down(4), Up(4), Left, Up. Orange Hulk will appear above Ryu.

Fight as Gold War Machine:
Highlight Zangief at the character selection screen. Then, press Left(2), Down(2), Right(2), Down(2), Left(2), Up(4), Right(2), Left(2), Down(4), Right(2), Up(2), Left(2), Down(2), Right(2), Up(5). Then, Gold War Machine will appear above Zangief.

Full pause screen:
Press Start to pause game play, then hold Y and press X.

Selecting special partners:
Note: The following codes must be entered while holding Start before the special partner selection screen appears.

Unknown soldier: Hold Weak Punch
Lou: Hold Medium Punch
Arthur: Hold Weak Punch + Medium Punch
Saki: Hold High Punch
Ton-Pooh: Hold Weak Punch + High Punch
Devilot: Hold Medium Punch
Anita: Hold Weak Punch + Medium Punch + High Punch
Pure and Fur: Weak Kick
Michelle Heart: Hold Weak Punch + Weak Kick
Mighty Thor: Hold Weak Kick + Medium Punch
Cyclops: Hold Weak Punch + Weak Kick + Medium Punch
Magneto: Hold Weak Kick + High Punch
Storm: Hold Weak Punch + Weak Kick + High Punch
Jubilee: Hold Weak Kick + Medium Punch + High Punch
Rogue: Hold Weak Punch + Weak Kick + Medium Punch + High Punch
Psylocke: Hold Medium Kick
Juggernaut: Hold Weak Punch + Medium Kick
Iceman: Hold Medium Punch + Medium Kick
Colossus: Hold Weak Punch + Medium Punch + Medium Kick
US agent: Hold High Punch + Medium Kick
Shadow: Hold Weak Punch + Medium Kick + High Punch
Sentinel: Hold Medium Punch + Medium Kick + High Punch 

Secret character quick select:
There are certain tasks that when completed will unlock the secret characters in arcade mode, without entry of a cheat code. If these characters are challenged and defeated, they may be selected by moving the cursor to where they would appear when their cheat code is entered. For example, for Roll go to Mega man and press Right. This quick select method may
be saved to the VMS.

Play as Onslaught:
Unlock all the hidden character quick selects. The "Onslaught" option will now appear in the game menu. 

Name changes:
Enter --- as a name to have the game change it to "SIN". Enter AAA as a name to have the game change it to "CAP". Enter MMM as a name to have the game change it to "MOT". 

Switch starting character:
Hold Weak Punch + Medium Punch + High Punch at the versus screen to switch the character that first starts the match with the second character selected.