It looks like Mega Man 9 started something. A new retro-flavored Gradius title has been announced for WiiWare. Gradius Rebirth will strike Japanese Wii systems this Summer. That's pretty much all we know for now -- details about the game's content, like whether or not it's a remake of a previous Gradius game is still unknown. Considering Gradius (NES) lives on the Virtual Console, we'd be surprised if this wasn't a completely brand-new game.