One Piece: Super Grand Battle! X

'''One Piece: Super Grand Battle! X''' is a Nintendo 3DS game published by Bandai and developed by Ganbarion, and it's the sequel to the Grand Battle! and Gigant Battle series. It seems to focus on the New World and more than 85 of its characters.

Gameplay
The game is a possible throwback to the first two Grand Battle games, in which battles take place on a 2D plane with various platforms and more noticeable stage hazards. This time however, character models are in higher quality compared to the two aforementioned games, and a few more items are featured. Also, there can now be 4 players on the battlefield and several graphical changes have been made to make it distinct from the said Grand Battle games.

Each player can also choose 2 playable characters to use in a Tag Team style combat system, referencing the Pirate Alliance theme, and making it akin to Jump Super Stars and Jump Ulimate Stars (a prior Ganbarion-developed series in which One Piece characters appear in) via its Dream Combo. Both characters can use combination attacks which change depending on the characters selected. Tying into the 4 player modes, this allows up to around 8 characters total on the battlefield.

All characters normally have 2 super moves and a reworked-classical throwback to the Secret Attack from Grand Battle 3 onwards (especially in terms of the BGM used), but it works more as an interactive form of attack for most characters.

Stages

 * Corrida Colosseum
 * Roger and Whitebeard's Final Meeting place
 * Fishman Island
 * Thousand Sunny (Normal / Art-Art)
 * "Red Dragon" Stage
 * Tontatta Kingdom
 * Marineford
 * Dressrosa Palace
 * Sunflower field
 * Anime 15th anniversary special stage

Playable Characters
Each Playable character has at least one Special Move (akin to the aforementioned Secret Attack), which, when activated, turns the screen red:

Stages

 * Edward Newgate and Gol D. Roger (Roger and Whitebeard's Final Meeting place Stage)
 * Elizabello II and Don Chinjao (Corrida Colosseum Stage)
 * Megalo (Fishman Island Stage)
 * Leo (Tontatta Kingdom Stage)
 * Jora (Thousand Sunny Stage)
 * Pica (Dressrosa Palace)

Items

 * Burn Bazooka
 * Little Dragon
 * Ucy
 * Brachio Tank V
 * Yellow Great Rhinoceros Beetle
 * Lassoo
 * Carue

Unlockable Content

 * Sabo as playable fighter.
 * Nintendo characters costumes for the Straw Hat Pirates :
 * Mario/Luigi costume for Luffy.
 * Link costume for Zoro.
 * Wii Fit Trainer costume for Nami.
 * Yoshi costume for Usopp.
 * Fox costume for Sanji.
 * Kirby costume for Chopper.
 * Samus costume for Robin.
 * Donkey Kong costume for Franky.
 * Marth costume for Brook.

Trivia

 * Roger and Whitebeard's Final Meeting place Stage resembles the same stage in One Piece: Gigant Battle! 2 New World.
 * This is the first video game to feature Akainu's post-timeskip appearance.
 * Strangely, in the opening, he appeared as before the timeskip.
 * This is the first video game to feature the Donquixote Family members.
 * After two games, Killer finally appeared in this series as a support character.
 * Several characters make their in-game debut such as Zephyr and Sabo.
 * Sabo is a playable character, both as "Lucy" then later his regular appearance as a secret character (but with the Mera Mera No Mi mixed in his fighting style)