Kokuga (コクガ) is a Nintendo 3DS game developed by Irem Software Engineering and published by G.rev. It is a top-down shooter game where players must navigate through various levels while shooting enemies and destroying obstacles. The game is set in a post-apocalyptic world where the player must battle against robotic forces in order to save humanity. Players must use a variety of weapons, including guns, missiles, and lasers, to defeat enemies and complete objectives. The game also features a variety of power-ups, such as health and ammo, that can be used to upgrade the player's arsenal. The game also features a variety of levels, each with its own unique challenges. Kokuga is a challenging and rewarding game that is sure to please shooter fans.