Final Boss - Moeru! Oniisan (FC)
- This page is for the Moeru! Oniisan (FC) and Circus Caper (NES) songs, for more titles see Boss.
Final Boss plays during the final boss battle in Moeru! Oniisan (FC). It was also one of the few songs kept the same in the North American localization, Circus Caper (NES), and is also used for the final boss. However, since the RPG element was removed from Circus Caper, the final boss is instead a reskin of the third stage boss in Moeru! Oniisan.
The song was written by either Osamu Kasai and/or Masaaki Harada, using Sound Routine No. 4. Because of the version of the sound driver, the music is played approximately a ¼ step sharp.