Gradius V is a Japanese-developed shoot ’em up video game published by Konami for the Sony PlayStation 2 video game console in 2004. Gradius V was largely developed under contract by Treasure, who had previously worked on Radiant Silvergun and Ikaruga. The game is set predominantly in outer space where players control a fictional spacecraft called Vic Viper through a continuously scrolling background depicting the territories of Bacterian—an evil empire which serves as the player’s enemy. Gradius V received overall positive reviews. Critics praised the level design, graphical design and “classic” revival, but criticized the game’s extreme difficulty.