Super Slam Bros.: Champions Unite

MLB X Super Smash Brothers X Kingdom Hearts: Sluggers of the Next Generation is a huge crossover between MLB, Nintendo, Sega, Capcom, Bandai-Namco Games, Konami, Ubi Soft, Activision, The Walt Disney Company, and Square-Enix.

plot
all 30 of the professional MLB baseball teams must team up with the Super Smash Brothers and Kingom Hearts heroes to eliminate their arch-nemesis in the playoffs to the World Series.

Songs

 * Neil Diamond's Sweet Caroline (1969)-opening theme (where all 30 teams dive into their hearts during practice in the months of February and March)
 * Lee Greenwood's God Bless The U.S.A. (1992)-ending theme (where all 30 teams gathers up with the Super Smash Brothers and Kingdom Hearts cast after the World Series win against the Heartless and Xemnas)

30 MLB teams

 * Arizona Diamondbacks
 * Atlanta Braves
 * Baltimore Orioles
 * Boston Red Sox
 * Chicago Cubs
 * Chicago White Sox
 * Cincinnati Reds
 * Cleveland Indians
 * Colorado Rockies
 * Detroit Tigers
 * Florida Marlins
 * Houston Astros
 * Kansas City Royals
 * Los Angeles Dodgers
 * Los Angeles/Anaheim Angels
 * Milwaukee Brewers
 * Minnesota Twins
 * New York Mets
 * New York Yankees
 * Oakland Athletics
 * Philadelphia Phillies
 * Pittsburgh Pirates
 * San Diego Padres
 * San Francisco Giants
 * Seattle Mariners
 * St. Louis Cardinals
 * Tampa Bay Rays
 * Texas Rangers
 * Toronto Blue Jays
 * Washington Senators

franchises that will appear in MLB X Super Smash Brothers X Kingdom Hearts: Sluggers of The Next Generation

 * Super Mario Brothers
 * Donkey Kong
 * Legend of Zelda
 * Metroid
 * Kirby
 * StarFox
 * Pokemon
 * F-Zero
 * Earthbound
 * Ice Climbers
 * Game and Watch
 * Fire Emblem
 * Kid Icarus
 * Pikmin
 * Sonic The Hedgehog
 * Metal Gear Solid
 * Pac-Man
 * Animal Crossing
 * Xenoblade Chronicles
 * Splatoon
 * Punch-Out
 * Mega Man
 * Street Fighter
 * Bayonetta
 * Rayman
 * Crash Bandicoot
 * Spyro The Dragon
 * Kingdom Hearts
 * Mickey Mouse
 * Alice in Wonderland
 * The Great Mouse Detective
 * The Rescuers/The Rescuers Down Under
 * The Black Cauldron
 * Dumbo
 * Aladdin
 * Peter Pan
 * The Lion King
 * Fantasia
 * Pinocchio
 * Tron
 * The Jungle Book
 * Robin Hood
 * The Fox and The Hound
 * Oliver and Company
 * The Little Mermaid
 * The Many Adventures of Winnie The Pooh
 * Beauty and The Beast
 * The Aristocats
 * Lady and The Tramp
 * Bambi
 * Snow White and The Seven Dwarfs
 * Mary Poppins
 * Pete's Dragon
 * The Sword in The Stone
 * Pocahontas
 * Mulan
 * Tarzan
 * The Hunchback of Notre Dame
 * The Princess and The Frog
 * Tangled
 * The Black Hole
 * Pirates of The Caribbean
 * Final Fantasy Series
 * The World Ends With You