Mobile edition of the popular japanese Flash game "Gekitotsu Yōsai!" (2008) developed by Suznooto and published on Android/iOS devices by Cygames for their Chogetsuku collection. This is a physics-based action/puzzle/strategy game in which two moving fortress fight against each other trying to destroy the opponent's vehicle (see also C.A.T.S.: Crash Arena Turbo Stars by ZeptoLab). The player must build a fortress buying weapons and soldiers with limited resources. The game is not available outside of Japan.