User blog comment:Whiskey13/Roger's ability/@comment-1984061-20101124234537

he uses a pistol and sword to fight so he must embue haki with their use, so i think his powers where the three forms of haki, Super Human Strength and fair Speed. I can't think of any fruit that suits him except for whitebeard's, personally i don't think he needs one, but the author might come up with something original.