How would you feel about KH3's multiplayer being a Monster Hunter/PSO HD version of χ? Maybe reusing assets from Back Cover. specifically: Four player co-op Mission structure Multiple costumes Custom created character Keyblade evolutions. Set it in the past and use the plot line of KHχ. Freely chosen keyblade fighting styles tied the wielding style to the keyblade itself. Big and unwieldy? Terra style. Two handed grip? Eraqus style. Short and speedy? Ven style. Two big blades? Valor style. Two light blades? Roxas style. Abilities as item drops with a trading system. Character classes: for example a dual wielding mage would be Master Form style, a dual wielding tank would be Valor Form style and a dual wielding DPS would be Roxas style. Also, give us free reign to customize our specials: we can make a strike raid that hits multiple times or one that hits really hard once. Attach spells to attacks like Fira Ars Arcanum or Thunder Sonic Blade. Character trees to customize characters: for example, one tree leads to the ability to use forms, which you would have to use points to unlock. One tree leads to keyblade transformations. One tree leads to limit breaks a la days. One tree leads to style changes a la BBS. One leads to a redone overclock system a la re:coded. Combined magic system: you start out with KH1, but at a certain level you unlock KH2, and a little later you unlock KH3D/BBS/re:coded magic. You can play with the one you like best. Raid Bosses would be a combo of [chi] and Unchained: like Unchained, you'll trigger them by killing a certain number of heartless, but they would trigger for both you and a rival union at the same time. Like [chi], both sides do as much damage during the time limit, with prizes to the MVP, the Killing Blow, the person who triggers it, and the team who does the most damage. Missions would be lifted from [chi]: you have story missions, daily missions, ongoing mission, and event missions, plus add in the Coliseum from Unchained. And everything won't be kill the target. Call it RE:χ.