Examu, the makers of the Arcana Heart games, has been working with Nitroplus on a crossover fighting game. Nitroplus Blasterz: Heroine Infinite Duel will launch in Japanese arcades on April 30. No details about a home version have been announced yet.
The game brings characters together like Saber from Fate/Zero, Ouka-chan, and Anna from Gekko no Carnevale are some of the fighters on the roster.