A 21st century where the concepts of "Nation" and "War" are deteriorating. The Japanese government, in order to cope with the massive air pollution and endless economic stress of Tokyo, transfers the capital to "Neo Tokyo", a dome city built in the Tokyo Harbor. The former districts such as Shinjuku and Shibuya of Old Tokyo are sealed off to civilians due to possible building collapses, effectively becoming "Neglected Zones"(or Trash Areas).
A few years later, a battle-game called "Rumbling" begins in one of the Trash Areas. In Rumbling, the contenders face each other while riding highly mobile armored land vehicles called "Scoobees", and receive fortune and rankings by destroying each other's vehicles. When one vehicle is destroyed, another enters combat, renewing the battle indefinitely! Fast, brutal battles and never-seen-before tactics such as Optic Camouflage have made the game a mega hit, and Rumbling's broadcast rating has sky-rocketed.
It's now the year 2031, and Rumbling is the biggest hit the entertainment business ever had. The fighters of the game want only one thing; to be the greatest and the coolest!
In the distant future, a television show in Tokyo becomes the rage, providing broadcasts of arena battles between mechs. The mechs, called scoobies, are piloted by youth and as one of them, you can customize and prepare your scoobies for battles. Make use of their unique payload, and cloaking devices, to outwit and outlast your opponents.
- Incredible realism: Exciting battles that take place in realistic future Shinjuku! - The theater of battle is the 3D-modeled Shinjuku district of Tokyo. You'll experience the roar of a Vulcan cannon, the Shattering glasses of a nearby shop window, the bullet-ridden walls. You can taste the excitement from a realistic virtual locale.
- A dangerous game of hide-and-seek: A totally new form of battle made possible by Optic Camouflage! - The Scoot Vehicle (a.k.a. Scoobee) can adjust the refraction of surrounding lights with Optic Camouflage, cloaking itself in invisibility. The only detector that isn't rendered useless from the Camouflage is the sonar. You'll be soaked in sweat and anticipation as you engage in a hide-and-seek match that literally puts your life at stake.
- Diverse mechanic designs that can be fully customized by the player! - The Scoobee's appearance, from camouflage paintings to color imprints can be changed with the installation of new parts. You can also customize the colors of the vehicle by adjusting the texture and RGB of the basic forms. In effect, you can have a Scoobee that is completely unique, different from anyone else's.