Acquire has released the debut trailer and detailed the prologue for its upcoming PlayStation 3 and PS Vita defense game Zettai Geigeki Wars: Metropolis Defenders.

The game puts players in control of a fortress city surrounded by rings, each rotatable like a turntable. The rings must be turned to properly fortify the city and ward off enemies when they appear. As you progress, you’ll be able to further develop and strengthen your city.

Here’s the game’s prologue, via Famitsu:

Altanight. An underground resource that appeared after the “Invisible End,” which was intended to be the final refuge for the many whose lives were destroyed. However, a gigantic life-form soon emerged, and even the Altanight was snatched away. Then, about a half century later… After a great deal of sacrifice from our predecessors, us humans finally became able to construct a city that can defend against the enemy. In order to move towards the future, and in order to destroy the enemy, we must expand the city and continue to protect the people.

The game is due out in Japan on July 2 for 6,480 yen on PlayStation 3 and 5,980 yen on PS Vita. Pre-orders include a soundtrack CD, visual book, and downloadable content.