Lunar Knights, known in Japan as Bokura no Taiyō: Django & Sabata (ボクらの太陽 Django & Sabata, "Our Sun: Django & Sabata") and abbreviated Boktai DS, is an action role-playing video game, the fourth title in the Boktai series of video games developed by Kojima Productions and announced at E3 2006. The game was revamped to remove the necessity of using the real-life solar sensor due to player troubles; however, it still retains the functionality if any of the Game Boy Advance Boktai cartridges are inserted.