Metroid Prime Trilogy is a compilation of the three games of the Metroid Prime series. The first two titles (Metroid Prime and Metroid Prime 2: Echoes) now use the combo Wii Remote and Nunchuk in the same way as Metroid Prime 3: Corruption. Other additions to these two titles are the support of badges to unlock bonus content such as artwork or music, and a savegame system supporting Miis.