These Riders are only unlocked at the Beginning of the Wii release while they can only be unlocked by completing different DS Levels. These Riders are unlocked at the beginning of the game. With the exception of Wing Knight and Siren, all of the Kamen Riders in the game are the Earth Riders. Xaviax himself becomes a playable character in 'Duel Mode' once all 13 Riders are unlocked and the player has defeated every mission (including defeating Xaviax himself) available in the 'Ventara Mode' for each Rider.ĭespite being a fighting game, it only supports single player. Xaviax is the final boss and has a different ending for each of the playable Riders except for Wrath who fights Dragon Knight as the final boss due to Wrath being possessed by Xaviax as in the show. The game's 'Ventara Mode' is a series of missions where the player fight Advent Beasts and other Kamen Riders, with a chance of unlocking them (as well as more Advent Cards) in a certain mission. The player is also able to select two more different cards before starting a battle. The player can charge the Rider's Advent Gauge by touching and holding the Rider until all three bars are full. In this game, the player uses Advent Cards to perform special attacks, depending on how much the Advent Gauge is filled up, with the Final Vent being used when all three bars are full.

The Nintendo DS version was developed by Natsume. The Wii version supports up to two players. As the player progresses, they are able to unlock Dragon and Wing Knight’s Survive Modes (if one or the other is used to complete Mirror World) and gain Rider Points to buy more Advent Cards in Card Mode. The game's 'Mirror World' mode is a feature not in Climax Heroes and is also a series of missions where the player not only fights Riders in one-on-one battles, but also defeats foot soldiers in beat 'em up-like stages, which were not featured in the Climax Heroes series until Climax Heroes OOO for the PSP and Wii, with more stages and kaijins. Xaviax is only a non-playable boss in both Arcade and 'Mirror World', if using any Rider but Wrath. The rest of the Riders and their Cards can only be unlocked in Arcade Mode and 'Mirror World' mode, respectively. The player can only play as the 13 Riders. The player can also select any Advent Card they want before the fight.

Depending on how much the Advent Gauge is filled up, the player can perform special attacks by using an Advent Card, with the Final Vent being used when the gauge is full. The Rider Gauge can only be filled up by attacking the opponent without special attacks. However, the gameplay was changed significantly. Dragon Knight and Onyx's character models were even recycled from Ryuki and Ryuga's respective ones.

The Wii version was developed by Eighting and uses a modified engine based on Kamen Rider: Climax Heroes for the PlayStation 2, which was also developed by Eighting.

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