Marvel vs. Capcom 3: Fate of Two Worlds

Simple, press the A, B, X, and Y buttons simultaneously during a match. Your character will have a red aura around him, and will be alot faster and stronger. The achievement will unlock after the match.

As the other guides state, hit A,B,X and Y at the same time to go into X-Factor.

I just wanted to post this to give a bit of extra info about X-Factor so it might help you out in knowing when the right time to use it would be.

X-Factor is dependent on how many characters are still standing on your team. A full team of 3 will give you less benefit then having only 1 character standing would.

Here is a breakdown of the benefits depending on how many characters are standing when you activate X-Factor.

3 characters standing- X-Factor will last for 10 seconds, will give your damage an increase of 120-160%(depending on your character) and will give you a speed increase of 100-125%(also character dependent)

2 characters standing- X-Factor will last for 15 seconds, will give your damage an increase of 135-180%(character dependent) and will give you a speed increase of 100-150%(character dependent)

1 character standing- X-Factor will last for 20 seconds, will give your damage an increase of 150-230%(character dependent) and will give you a speed increase of 100-175%(character dependent)

I hope this guide has given you a better understanding of how X-Factor works and gives you an idea of how to properly use it.

Let me know if you have any questions and I will be happy to answer them.

In order to pop this achievement you'll need to activate X-Factor during an Arcade or LIVE match.

To activate X-Factor, press A, X, Y, and B at the same time during a match. This will follow up by your character having a Red Aura and showing increased performance in Speed, Damage, and red Health Regeneration.

Whether you win or lose you'll pop this achievement a little afterwards and earn 10G!