Prostudent Good

About
Prostudent Good was released by AliceSoft on January 14th, 1999. It was later re-released on April 19th, 2002. It is a spiritual successor to the previous game, Prostudent G. The gameplay is mostly a mix of mech fights and map movement, where you defeat the enemies, and visual novel-like story segments.

Story
The time is 2005 in Japan. The world has received word that aliens shall invade Earth. Therefore, Japan set up a robot group called Yugoku to fend off the aliens when they come. However, eventually the aliens did not come, so Yugoku was all for nothing. Meanwhile, the Japanese government was totally corrupted, and Yugoku decided to use their robot army to overthrow the government.