Thundercade

Thundercade, also known as Twin Formation and 特殊部隊UAG (Tokushu Butai U.A.G., "Special Forces U.A.G. (Un-Attached Grenadier))", is a vertically scrolling shooter developed by SETA and released as an arcade game in 1987. A version for the Nintendo Entertainment System from American Sammy was released in 1989. The original arcade flyer establishes that despite a 199X treaty eliminating all nuclear weapons, a certain northerly nation was suspected of developing such weapons in secret. Therefore, the United States of America military sends in the U.A.G. elite unit consisting of an armed motorcyclist and a support bomber to quell the threat.