E.X. Troopers

The game features similar gameplay elements to previous Lost Planet games, including the presence of major boss battles, extreme terrain, and Vital Suits (VSs). The player controls the protagonist, Bren, from a third-person perspective as he is challenged to navigate through different areas by running, dashing, grappling, zip-lining, and using his jet pack to quickly boost over a short distance.

Combat primarily focuses on shooting enemies using a primary and secondary weapon (typically a weaker and short-ranged firearm with more ammo and a stronger and more versatile weapon, respectively). The game also features melee combat, involving punching foes into the air to juggle them with firearms (much like Devil May Cry), kicking them away, and blocking their attacks. The jet pack can be incorporated into attacks to increase their strength and effectiveness. Experience is earned by eliminating enemies and completing objectives.

The game begins with the approach of spacecraft transporting enlistees to Neo Venus Construction Inc. N. III. N.

II, is on board among the new recruits when the fleet is suddenly attacked by mysterious VSs. To confront the hostile force, Instructor Walter Stingray selects Bren to pilot a prototype VS equipped with a next-generation AI, capable of even autonomous behaviour. As the new "master" of this state-of-the-art machine, Bren designates it with the name "Gingira" and joins Walter to defend the fleet.

While E.X. Troopers had a trademark that was filed in November 2011, it was originally teased in an issue of Famitsu as a new Capcom project with limited information and without a title in April 2012, the same month as Lost Planet 3's announcement.

The mysterious game was officially announced in another issue of Famitsu during May 2012, and revealed to be an action shooter for the Nintendo 3DS and PlayStation 3 headed by Shintaro Kojima (Monster Hunter producer). The game shares the same world as Lost Planet, but features an anime art style (using a cel-shaded design aesthetic) and a school-themed atmosphere akin to a science fiction version of Capcom's Rival Schools: United by Fate or Project Justice. There is also manga-style storytelling used between stages, similar to the cutscenes in Gravity Rush. X.

In the Japanese video game magazine, Famitsu, E.X. Troopers scored a rating of 34/40 (9/9/8/8) for the Nintendo 3DS version and 32/40 (8/8/8/8) for the PlayStation 3 version. However, since the title was only released in Japan, it was not professionally reviewed for English-speaking audiences. Impressions from available previews of the game were nonetheless largely positive, and players have expressed their interest in seeing it translated for a wider release.

Kotaku explains that "Lost Planet is a serious sci-fi/action series with a plot built around drama and treachery. X. Troopers is a lighthearted "save the world" adventure in a school setting with mystical shamans and Gundam robots. While both take place in the same universe and even on the same world, the tone, plot, and much of the lore feels completely different".