Oh yeah, on Saturday I went to a friend's house to play Melee. I was just messing around and chose Pichu against his Falco, proceeded to kill him extremely early with Pichu's F-Smash every stock since it sent Falco really far off stage which resulted in me winning. This made him angry, so he went Fox and I chose Roy for the hell of it. I don't have a Roy whatsoever, and I was able to beat his Fox (his secondary), Falco, Sheik, Marth (his main), Falcon, and Jiggs with my nonexistent Roy. He was so salty; I don't even know what I did to play so well. I figured out then and there that Roy can tech chase with his D-Throw the first time I used it, and I've never tech chased with grabs before but I was nailing them on my first try. I think his biggest fault was that he doesn't crouch-cancel anything which netted me really good knockback, and he was getting aggressive and close which let me get sweetspotted F-Smashes a lot.
I wish Roy were viable because he's so fun to play, I'd play PM Roy but they don't feel the same at all.