Bishoujo Hunter ZX

In the 1990-ies, increased tension between powerful countries of the world and economic crisis have eventually lead to open hostility. By 2018, the world was nearly destroyed in a devastated war. A handful of scientists working for peace have devised a plan - called "Project ZX" - to prevent this disaster from happening. All they need are a dozen of young, pretty girls, who would be trained with the newest scientific equipment. The hero of the game is a lazy teenager, fan of computers and - surprise! - pretty girls, and he is the one who is entrusted by an old scientist to find and recruit these special girls, aided by a robotic bird named Chico.

[from Moby Games]