>>13519095You can play literally any of the games in any order. Like the Johto games (GSC, HGSS) work better if you've played the Kanto games because they lean hard in on Kanto nostalgia, but otherwise just whatever order you want. If you really want an order to play the games, I'd say:
Red or Blue >> Colosseum >> HGSS >> BW >> B2W2,
everything else is optional but I'd consider this to be the core Pokemon experience with a bit of every good generation.
Also ignore Yellow cucks, Yellow looks like shit and people only prop it up because muh underleveled starter and muh garbage Pikachu that can't evolve.