By Spencer . March 1, 2010 . 10:48pm
They filed a trademark for Gradius Arc earlier this year, which was released into the wild Japanese trademark database today. Since it’s only a trademark we’re not sure what kind of game Gradius Arc could be.
Unless you count Otomedius, a spin-off, the last Gradius game was for WiiWare. Before that Treasure made Gradius V with Konami for the PlayStation 2.