Pokkén Tournament DX is the second Pokkén Tournament game. This game brings the content from the Wii U version back in line with the Arcade one, with even more content unique to the Nintendo Switch. It includes various new battle modes and characters including Decidueye and Support Pokémon of Litten and Popplio. There are a total of 5 new Playable Pokémon bringing the total up to 21, 2 new stages and 1 new Support Set. Unlike the original version, this game has all Pokémon, Support Pokémon, stages and Cheer Skills available from the beginning of the game without need to unlock in the Single Player

There are also a variety of new modes:
Team Battle mode – Pick three Pokémon and battle it out to be the first to defeat all your opponent's Pokémon to win in the new Team Battle mode.
Group Match mode – Find similar skilled players in battle rooms for intense and fun battles online.
Daily Challenges – Complete a variety of different daily challenges.
Watch battle replays – Hone your skills by watching other players' replays and share your best matches online with the new replay feature.

The Single Player remains the same of competing in the Ferrum League while also uncovering a story of Shadow Mewtwo.

As the game is a deluxe version, it doesn't provide much new but does provide a full version of the game, with portability aspects. It also has local multiplayer which can be played simultaneously or split screen.