...But it's not what you think.
Back before Nintendo made videogames, they dabbled in cardgames and children's toys. One of these particular toys was in fact Ultraman based. Get a load of this.So it's probably not any legendary heroes or whatever for the 3DS, and it's probably really dated by licensed board-game standards... but daaang if the art isn't cool.
Here's the Kotaku article so you can get a closer look at everything, including some neat art of some iconic kaiju.