Ok, I'm not being misleaded by anything but when I visited the MSN One Piece Manga version 3 site, I went into a message board in the manga section and I find a title called "DBZ refrance in One Piece" and someone their remarked that the gear 2 Luffy Vs. Blueno fight somewhat resrambled the the Goku Vs. Vegata figth olny that Luffy and Blueno has Devil Fruits.
Luffy: Gear 2!!
"Powers up a bit"
Blueno: Doa Doa air door!
"Hides and comes out behind Luffy, but Luffy disappears!"
Luffy: Gomu Gomu Jet Boozoka!