honestly the west really got the short end of the stick with almost no meaningful representation.
Hard disagree, and here's why.
Smash Ultimate was the first game in the series to bring in characters from western studios. Prior to this, the extent of this representation was Rayman and Bit Trip Runner trophies. I might be forgetting some other table scraps, but it was practically nothing.
Then we get to Smash Ultimate. Just off the top of my head, we have...
Banjo & Kazooie and Steve as playable characters, in our first roster collaboration with a major western studio
Shovel Knight as an Assist Trophy
Undertale, Cuphead, DOOM, Skyrim, Shantae, Rabbids, Assassin's Creed, Fallout represented through Mii Costumes
(with Megalovania, Floral Fury and Burning Town as music tracks)
Rayman, Shovel Knight and Shantae spirit battles in base game. Cuphead, Warframe and Hades spirits added later.
If we wanna split hairs too, we have several Nintendo characters designed by western studios.
- two of which were added in Smash Ultimate.
This is such a massive growth between games, it's ridiculous. Clearly a LOT of focus was given toward letting western properties get in on the fun, and with how well much of this has went over I imagine it's just the beginning. You need to view this less compared to all the Japanese content, which is obviously always going to have more, and rather judge how drastically we've improved on this area through the course of Ultimate's lifespan. Give it a little time, it would have been unreasonable to expect a large majority of third parties be overseas collaboration in the first game we've touched on it at all.
Worth acknowledging too, the roster caters heavily to western taste on the whole. Metroid is not nearly as popular over there, and Sakurai has stated that the addition of Ridley and Dark Samus were responses to western outcry. Little Mac and Duck Hunt are classic Nintendo icons here, but less so in Japan where several were left scratching their heads. Note that characters like Takamaru were outright skipped due to a lack of notoriety worldwide, but this was hardly an issue with characters more dominantly known in the west. Our voices have been heard and answered.