
Toma and Cyrille from Shining Force EXA.Zephyr and Leanne from Resonance of Fate ( End of Eternity).Phantom from Super Robot Taisen OG Saga: Endless Frontier.Necron from Super Robot Taisen OG Saga: Endless Frontier.Omicon from Super Robot Taisen OG Saga: Endless Frontier.Nemesis from Resident Evil ( Biohazard).Selvaria Bles from Valkyria Chronicles ( Senjō no Valkyria).Aya-me from Sakura Wars ( Sakura Taisen).Ciseaux from Sakura Wars ( Sakura Taisen).Remaissance La Vaes from Shining Force EXA.Namco Bandai came up with the idea of a "dream crossover" and brought on Capcom and Sega.

The game was first revealed in a teaser by Bandai Namco on the official website until it was revealed in the April 2012 issue of Famitsu. The initial creation of the characters were done in 3D character models before they were converted to be SD pixel art. Notable attacks used by the characters had to be done in 2D space in order to preserve its source material origin.
