I am not slighting you in anyway, however, I think now is a good time to address the "you cannot be a fan of "xxxx" character because you have not played the game they are from."
The funny thing is that I have only seen this used against Roy. I am sure very few people have played the game/s that the Ice Climbers, ROB, Marth, Ike, Ness, Lucas, Mr. Game & Watch, and Captain Falcon are from, especially relative to the size of their Smash Bros. fanbases. For some of those characters (Ice Climbers and ROB) their source material games are considered sub-par, and for Captain Falcon (outside of GX) you don't see him do anything outside of his car.
Also, here is another way of looking at it. Look at Toad and Waluigi, most of their popularity comes from games where they are simply another character on their game's rosters. Their fanbase mostly derives from people who use them in those games.
The same goes for Smash Bros. Many people could absolutely hate their source material (like most Ice Climbers and ROB fans), but absolutely love how they are portrayed within the Smash Bros. series. The Smash Bros. games are just as much Captain Falcon's games, as the Mario Kart games are Waluigi's. So to say that you cannot truly love a character since you have not played their source material is very disingenuous.