E.X. Troopers is a spin-off from the Lost Planet series that's coming to 3DS and PS3, an unlikely combination. We first became aware of it in May when it was announced for Japan, but much like Project X Zone it's still not confirmed for worldwide release.
During the weekend, as part of its Summer Jam event, Capcom shared more details as well as a new trailer. As reported by Andriasang, there was a demonstration that showed off the hub 'Academy' area, including a lab where you get your mech-style 'Vital Suits' and a cafe where you can get bonuses before starting a mission, the latter sounding similar to the attribute boosting meals in Monster Hunter Tri. It was also said that the title would include co-op multiplayer, without providing specifics on whether 3DS would have that content in either local or online form. Based on the online co-op multiplayer experiences already available in titles such as Heroes of Ruin and Resident Evil Revelations, it's possible that these options won't be limited to the home console release.
The trailer footage is quite possibly from the PS3 version, but with that art-style we can't imagine the 3DS having too many problems reproducing similar visuals.