Hell yes I want Slippy! I don't know why my support thread is locked while all the other threads aren't.
Confirmed for never playing a Star Fox game. Slippy's been playable in both versions of Star Fox 64 and Assault's multiplayer (and arguably the best character stats wise). Also how does Krystal have more prominence than Slippy if she barely did
anything important from the games she appeared in? Slippy is the mechanic of the team, which I shouldn't need to explain why this very important to their job and lifestyle, and he's Fox's best and childhood friend. Krystal's only playable for almost ten minutes in Adventures if you speed run and she ironically gets trapped in a crystal for the rest of the game. In Assault she's only playable in multiplayer and she had one small moment with Fox on Sauria. Her telepathy is pointless in a series where sensor technology is a basic requirement like those small maps you have on screen, remember those?
As far as the clone part I think we can all agree that him being a Fox clone would be the lest likely option because Slippy wouldn't be moving with very fast attack animations and fighting style. Falco is even less likely. What Sakurai would most likely do if he wanted him as a clone is make him a Dan Hibiki-fied version of Snake. This makes the most sense because they both are mercenaries, use similar equipment (grenades, rocket launchers, mines, recovery that hovers them), and the biggest thing Sakurai already set up for us in Brawl when Snake wanted Slippy to design a weapon for him after they gave each other advice on weapon versatility. Slippy is the furry Otacon in Smash Bros without the horrible track record with women.
Slippy does have move set potential as well. He would just use the weapons from Assault and tools like his wrench and screwdriver since he is the mechanic of the team. If he's a clone or not he'll still have an accurate move set which is still something that
will unfortunately never have. S don't claim Slippy can't be unique if you can't back up your argument because I can.
http://smashboards.com/threads/enemy-shield-analyzed-the-slippy-toad-support-thread.328528/
Then there's Sakurai choosing which characters he wants to be unique so that's another going for any newcomer.