And if you really wanna get evil, include Mew as an Unknown Expy (circa.

Ditto: Either as a Ditto Fighter (natch) similar to Mokujin, or, at least, appearing as an icon for the Random Fighter option.

Why limit themselves to just Fighting types? There are plenty of other Pokémon that can really work well in a fighting game.

Most Pokémon within the Human-like Egg Group: Or at least having a humanoid-shaped body.

Fighting-plate Arceus: As a Harder Than Hard Bonus Boss.

Pikachu Libre is a separate character, however. It's also possible to dress up Pikachu in a luchador outfit in the upcoming Hoenn remakes.

Sceptile and Braixen have been confirmed.

Tons of Hoenn and Kalos Pokémon: Might as well boost those XY/ORAS sales while they're at it.

So far Lucario, Blaziken, and Machamp confirmed: Heracross, Pangoro, Sawk, Throh, and Scrafty appear in the background of fight arenas so they are probably not going in.

There are about 30 fully-evolved Fighting Pokemon in all, which is a pretty good size for a character roster.

Every Fighting-type Pokemon: Maybe not in the arcade release, but the inevitable Wii U port will likely have most or all of them.

Pokken tournament tv tropes