Nope, but Alpha's new Halloween-themed costume makes me think otherwise on The Ends of Earth stage and Zack Island.
Free Step Dodge
DestructionBomb
VAND1TA
not at all.
GreatDarkHero
Nope. I just pick certain costumes either because they are cool or because they are provocative.
KasumiLover
No. They're merely for the user's enjoyment. Aesthetically wise, I feel I play better and more focused in certain outfits I'm fond of.