>>51634082Off of the top of my head
>YugiohTag Force lets you use every card ever made + some new cards. Also you can partner with any character in the game or previous games from the same era. Made a full time travel game that lets you travel between every era.
>RanceRance Quest has hundreds of playable characters with unique dialogue including the majority of characters from the previous ten games of the series that are still alive, and if your character isn't represented you can add them back in with the character creation system.
>Marvel vs. Capcom 256 playable characters, almost everyone from the series up until that point.
>Super Smash Bros.89 playable characters, everyone from the series up until that point.
>Musou Orochi 3177 fucking playable characters, every single character from the previous entries barring guest characters.
I'm sorry, you are just wrong. Other companies are completely capable of making games that have the vast majority of their absurd roster in them.
Pokemon Showdown, a free fangame, has all the Pokemon in it, and you can play as ANY character from the entire series.
The idea that GameFreak can't make a game with all the Pokemon in it with the absurd ridiculous budget they have is fucking laughable. They absolutely can, they just don't want to.