Hametsu no Mars

The game is based on the anime series Mars of Destruction. In year 2016,
mankind finally reaches the planet Mars. They gather Martian artifacts,
intending to bring them to the Earth for further study. But a malfunction
causes their spaceship to explode shortly before landing in Japan, and the
artifacts fall onto the Earth, releasing a terrible virus that makes people
insane and violent. A special unit called AAST is assembled to fight the
threat. The group consists of five beautiful girls, the captain, and the
protagonist Takeru.

Hametsu no Mars is a Japanese-style adventure with action sequences. You’ll
battle against mutants in your protective suit, reacting quickly to the
enemies’ actions and attacking them with various degree of strength. Between
battles you’ll have enough time to talk to your lovely combatants, trying to
make the right decisions and to conquer the affection of one of them.