Namco Bandai's dungeon crawler RPG called Lost Heroes blends together the worlds of Ultraman, Kamen Rider and Gundam. Initially announced only for Nintendo 3DS in January 2012, the game will also appear on the Sony's PSP with both versions having some system specific features like StreetPass functionality or the option for custom soundtracks.
Among the confirmed characters are: Kamen Rider Den-O, Ultraman Taro and Z Gundam.
The 3DS version supports StreetPass which lets you collect random cubes that unlock special dungeons with rare items. Also, owners of the 3DS version will get an exclusive downloadable character with Famicom's SD Hero Soukessen.
You can use a custom soundtrack for the game and even specify a song for each Hero Skill. Additionally, this version features 5 custom themes and bonus "data."