This Konami-developed/Ultra Games-published horizontal space shooter, borrows the name of the European version of Gradius, as well as some elements from Gradius 1 and 2. The end product is a game that has some new content, as well as some old. This game was only released in North America and Japan.
Release for the Game Boy that was followed up by
Gradius: The Interstellar Assault
Chikyuu Kaihou Gun ZAS
Shoot 'Em Up