When I've seen this topic on other boards, they usually try for something funny or silly, not actual game/collection challenges. With that in mind...
If you need to reach something up high and your first instinct is to call your dog and jump on his back, you might be a Rockman fan.
If you think construction helmets can block anything, you might be a Rockman fan.
If you've ever put a cup on your hand and pretended it was a gun, you might be a Rockman fan (or a Samus fan, or...)
If you think spinning with your fists out will stop a ninja in his tracks, you might be a Rockman fan.
If you think giving your sister screws and watching her change clothes is A-Okay, you might be a Rockman fan (or live in a very secluded community).
If you think bubbles can be made out of lead, you might be a Mega Man fan.
If you think bubbles will lead your way, you might be a Rockman fan.
If you routinely jump and slide through doorways you enter, you might be a Rockman fan.
If you think modern robots evolved from cro-magnon bots, you might be a Mega Man cartoon fan.
If you change your clothes every time you pick up a new item, you might be a Rockman fan.
If you've ever fought for everlasting peace, you might be a Rockman fan.