I can see you haven't played Earthbound/Mother 3. Mother definitely deserves at least one more
All cards on the table. EarthBound's gameplay didn't click with me at all and I couldn't finish it, but I've loved what I've played of Mother 3 so far, with its far superior gameplay (and really neat rhythm mechanics) and very compelling story. Sadly I hit a bit of a wall with the musical instrument attic boss since it's like, the only time the game requires grinding to progress, but I'm aware of the general story beats that happen afterwards. In general Mother 3 is a game that resonated a lot with me simply for how progressive it was for a 2006 GBA game. A story about how people respond to grief in different ways, a cautionary tale about environmental destruction, a warning of the dangers of capitalism, and the looming threat of fascism. A cast whose main protagonists include a sheltered young boy dealing with unimaginable personal tragedy, his dog, a hotheaded tomboy princess, a disabled man abused by his father, and a monkey subjected to horrific animal cruelty. It's fun, cute, and quirky, just as much as it's heartbreakingly tragic.
But with
all of that being said, I can also say that the EarthBound series is
incredibly lucky to have gotten as much as it has, especially in relation to other Nintendo franchises, both with playable fighters and without.
This is a three game franchise that has never sold particularly well, one that hasn't had a game in over fifteen years, and one in which none of the games initially released worldwide. EarthBound Beginnings took 25 years to leave Japan. EarthBound didn't get a European release until the Wii Virtual Console, over ten years after its initial release. Mother 3
still hasn't left Japan, despite over a decade and a half of international demand.
And yet, despite all of this, it has two of its three main characters (and the two from games that are actually well regarded...sorry, EarthBound Beginnings) in Smash already. This puts it above modern juggernauts like Splatoon, continuing series like Pikmin, and classics like Punch-Out!! already. It has
four stages, which is as many as Fire Emblem and Metroid, two franchises with over a dozen games each, and
Donkey Kong, to put things into perspective. It has a healthy selection of spirits, and the music selection also isn't bad considering the legal issues with a lot of the soundtrack.
Considering a character, a stage, music, and spirits are literally all the contents of a Challenger Pack, and it would be receiving all of this in addition to what it already has, I can't help but feel that given the context, the series would be punching above its weight. Again, it's a three game franchise that has literally never had a fully international initial release.
The only thing I can really say I feel is missing is that I wish Duster also appeared in Lucas's Final Smash.