Crossplay

Is Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey crossplay?

Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey is only released on one platform, so there is nothing to cross-play with.

In addition to the game’s revamped graphics and refined gameplay, a new side story follows Bowser Jr. as he gathers an army, creates formations, supports his allies with an arsenal of moves and generally causes chaos (in the best way possible).