XY Forces

Power Battlers Invasion (パワーバトラーズインベージョン) is the sixth installment of the Power Battlers series. It was developed by Burst Arts and published by Namco Bandai for the PlayStation 3 and Xbox 360 in June 2008. A PlayStation Portable version was released in 2009 titled Power Battlers Resurrection (パワーバトラーズレズレクション), featuring new characters.

Gameplay
The game's arenas are similar to those in Power Battlers: Fallen Force, but include new features such as stage transitions where when characters are knocked back in a certain area, they are sent to another part of the stage. The game also introduces the "Combo Canceller", a system which allows players to interrupt combos twice per round.

Invasion introduces two minigames that use Power Battlers characters. "Power Shooters" is a minigame reminiscent to vertical shoot 'em ups, but uses player-selected characters as ships that fire projectiles at incoming enemies. Some ships have certain abilities, ranging from locking onto targets to instantly killing surrounding enemies. It also features "Sphere Battlers", a puzzle game similar to the Puzzle Bobble/Bust-A-Move video games which features super deformed versions of the MK characters that attack each other once a player gains an advantage in the game.

The Dungeon returns from Fallen Force and serves as an interface to access extra content hidden in chests. In Invasion, the size of the Dungeon was reduced from 830 to 320. Some chests also have locks that require keys which can only be found in the Venture mode.

Fallen Force's RPG/beat 'em up "Venture" mode also returns in Invasion. This Venture mode explores the history of Tago Zax, starting prior to his research on the other worlds and ending with the main story of Invasion. Players seeking to unlock the majority of bonus content in Invasion are required to play through the Venture mode.

Story
In the final events of Power Battlers: Fallen Force, Meixiu's warriors of the Earthlands had failed to defeat the Fallen Force (Iceldo and Shura), who have completed their plan on conquering the worlds. With Meixiu defeated, the Fallen Force dissolves as the scientist and sorcerer turn on each other for Chloromia's relic. After Iceldo succeeds, Kyoda, the emperor of the Plasmarian alien race, appears alongside his Plasmarian soldiers to commence his invasion. Meixiu awakes and then unleashes all of her powers in a colossal explosion that, apart from destroying both members of the Fallen Force, the surrounding palace and herself, did nothing to queel Kyoda.

Kyoda now seeks to use six technological devices called Bitblades, which are able to destroy all of the worlds. The survivors of the battle against the Fallen Force now stand against Kyoda and his supporters. The latter include the forces of Eveia, now led by Kantha as she disguises herself as her cousin, Cher Palmeiro. Other enemies include the former defenders from the realms, who were resurrected by Kyoda and are under his control.

Returning

 * Amala: A loyalist to Queen Natwan who agrees to help her save her friend Cher, and also seeks to see Kelti dead.
 * Bartz Hogan: The Earthlands' protector and reanimated zombie being controlled by an unknown entity.
 * Baxter Nikonov: Russian entrepreneur willing to avenge his passed comrades by defeating Kyoda.
 * Benmatsu: The late king of the Deadlands. Thought to have been killed by the Fallen Force, Benmatsu tries to stop Kyoda.
 * Blizzard: The Champion of the Superior Spirits who has been sent to the Deadlands to destroy Kyoda.
 * Cher Palmeiro: Brazilian woman who was thought to be killed in battle and revived to serve Kyoda; appears to be fully aware - if not in control of her actions. (exclusive in Resurrection)
 * Chris Turner: Soldier of the Deadlands Investigation Program, deceased and revived to serve Kyoda. (Exclusive in Resurrection)
 * Elvin Mato: Native American man who is the leader of the new Blood Dinosaur clan.
 * Frasier Nix: The general of Eveia's army.
 * Garcia Okiro: African woman who joins the survivors of the attack of the Fallen Force.
 * Gilberto Romano: Spanish man wanting to avenge the other Earthland fighters.
 * Hiroki Kinomiya: Young half-demon leading the survivors of the Fallen Force's attack against Kyoda and his allies.
 * Idelle Gardet: French designer joining Hiroki in fighting Kyoda to avenge her fallen friends.
 * Kang Se-hwan: The blind Korean fighter who was saved by Sandstorm.
 * Kantha: Cher's evil cousin who acts as her in order to disrupt Eveia's forces.
 * Kelti: The traitor of Eveia, who is now a servant of Kyoda.
 * Kristine Valiance: An Irish florist acting as the "Sin Slayer" of her home.
 * Liam-Typhoon: the joint team in which Liam Robos seeks to form an army of Cyber-Monsters with Typhoon as a template. Invasion officially revealed Robos to be the original Sandstorm from the first game and its  remake.
 * Mahler: Volkoran prince once again serving Benmatsu.
 * Masako Shiyasha: A young warrior saved from the Fallen Force by Frasier and helps him in Eveia to fight the Geljin Swarm.
 * Meixiu: The Huli Jing who is reborn from her death and has become enraged at how many beings have repeatedly endangered the Earthlands.
 * Natwan: Queen of Eveia who looks to save Cher.
 * Romoni: Leader of the Geljin race.
 * Zeus: A Deadlands elemental who was captured to ensure the means of Kyoda's return, but is now free to pursue his own quest: to monitor the worlds' companions and prepare for the Endgame, come the overabundance of power. (Exclusive in Resurrection)

Newcomers

 * Cynthia Faye: A half-demon woman who has discovered means for escaping the Fellands, a holy sword called the Flair. To achieve her goal of restoration, she must slay powerful evil such as Liam Boros with the sword. Each denizen of the Fellands she slays brings her closer to freedom.
 * Enshu: A fellow member of the Peace Corps who believed in the power of justice and opted to save anyone. But when he attacked a civilian in a fit of rage, he was imprisoned, only to escape during the Resistance's riot. Now hired by Rukas, his new mission is to assassinate his former partner Hyouji.
 * Gala: A ruthless woman recruited by Elvin of the Blood Dinosaur clan.
 * Gregory Balford: A brutal Blood Dinosaur hellbent on destroying anyone in his clan's path.
 * Hyouji: A respected warrior from the Justlands, who fights to preserve law and order. While his initial residence to the Deadlands was to defeat King Benmatsu, he has since allied with a ruler he feels will bring true peace to the worlds.
 * Kyoda: Plasmarian emperor who has plotted his invasion of the Earthlands since before the Fallen Force was formed. When he noticed the Fallen Force controlling the souls of mani fighters, Kyoda saw this as his opportunity to enact his invasion, specifically to search for the Bitblades.
 * Rukas: Leader of the resistance in the Justlands. His ambition is to overthrow the oppressive regime that lessens freedom. While many saw Rukas as a hero, there are others who compared him to a terrorist.
 * Senriq Sin: A mage of the Discordlands who saved Elvin from death; he wishes to consume Kyoda's mind and revive Benmatsu to ensure chaos reigns, instead of the forced law that would follow should Kyoda fuse the worlds into the Multiworld.
 * Tago Zax: A British scientist who was searching for the Bitblades under the request of someone named Kay. However, it was because of his ego that Kyoda, under that disguise, was allowed to fool him into collecting the Bitblades, which if misused can spell the end of all realities. He desperately searches for a way to gather the heroes of every world to prevent that.

Stages

 * Chaos Rain
 * Scorching Temples
 * Hidden Chamber
 * Toxic Lakes
 * Concrete Jungle
 * Fellship
 * Amber Oasis
 * Bartz's Grave
 * Violet Sky
 * Mainframe
 * Iceldo's Fortress
 * Switch Resort
 * Frozen Tundra
 * Plasmarian City
 * Plasmarian Emperor's Spaceship