Gradius Rebirth which in short means remix. Much of the content seems to be from previous games Gradius III, Gradius IV and it is designed to look mostly in the style of Gradius Gaiden. The game features two modes: a standard game with unlimited credits and a Score Attack mode where players are only given a single credit to beat the game. Score Attack also supports online leaderboards. The game features 5 different types of weapon configurations to choose from, and five stages in total, with each (except the first stage) having its own original boss at the end. There are also bonus areas one can gain access to within the stages, usually in some hard to reach location. The music is composed of remixed music from previous Gradius games, mostly from the Nemesis series.