Step 1: Bring X and Zero
(Make sure that X has the HERMES ARMOR,
and its NECESSARY to have AWAKENED ZERO)

Step 2: The moment the battle starts,
place yourself in a safe zone, where the thunders don't touch you,
and everytime a thunder tries to hit you,
go to a wall, and dash,
the invincibility frames will save your ass

Step 3: If you got hit using X, use the XDrive,
this will heal the red bars in your HP COMPLETLY,
and give you 10+ second of Invincibility,
when Vile's Desesperation attack ends,
USE AWAKENED ZERO,
and attack him with Zero's special ability,
this will do an INSANE damage to Vile
(Vile can use His desesperation attack again and again, so pray that the RNG doesn't betray you,)
use Zero's special ability again and again,
until he is DEAD
(just don't get hit or you will DIE)

Watch the video and you might understand my strategy
This thing is HARD ASF, but its possible
(somehow)

Now...
YOU OWE ME A LIKE-