Marvel vs. Capcom 2 Hints

In order to do this glitch Chose Juggernaut and 2 other fighters.
Do the Power Up Special and then tag out with another fighter, then switch back to juggernaut and
do the power up special again, you are now in Glitch mode and do much more damage.

After you win a match and your character does his/her victory pose, press Start. You'll be able to attack your fallen opponent while he/she is down.