Monster Hunter Generations Ultimate allows cross-play between 2 platforms

Supported crossplay platforms
Release Date: Aug 25, 2017
Official Website: Link
Supported crossplay platforms:
Monster Hunter Generations Ultimate is supporting cross-play across multiple platforms. Currently it is possible to play together with your friends on Nintendo Switch and Nintendo 3DS.
An enhanced version of Monster Hunter Generations. It features new monsters, hunting styles, and the more challenging G-Rank quests. Game data from Monster Hunter Generations can be carried over, with a one way transfer, to Monster Hunter Generations Ultimate. Game data can also be moved between the 3DS and the Switch version of the game.

Monster Hunter Generations Ultimate is also known as:
  • MHXX
  • モンスターハンターダブルクロス
  • Monster Hunter Double Cross
Supported game modes:
  • Single player
  • Multiplayer
  • Co-operative
Supported player perspectives:
  • Third person