This game is jointly launched by Japanese game companies COLOPL and MIXI. According to the official statement, "Festival Showdown" is a 6-on-6 group battle action game in which characters from "Monster Strike" and "White Cat Project" will appear. In the world of this game, there is an arena floating in the sky, and a battle entertainment show "Festival Showdown" is being held. Heroes who usually live in different worlds and should not have any intersection will gather in the arena. A fierce battle unfolded. The so-called heroes are popular characters active in the worlds of "Monster Strike" and "White Cat Project". They are realized through the science and technology in the game world.
The game has prepared four modes for players to fight: Team Survival, Capturing Crystals, Capture Antennas, and Escorting Trucks. Each mode has a special auxiliary mode, which allows players to throw recovery on the battlefield from a God's perspective while waiting for rebirth when they are knocked down. Props or bombs, etc., support friendly forces and hinder enemy forces outside the battlefield.