CAPTAIN SPACEBOY, also known as SPACE (EX-)BOYFRIEND, is a major boss character in OMORI. He is the leader of the SPACE PIRATES that traverse throughout the galaxies and a major antagonist in the game. He possesses a green-colored space gun that shoots out laser beams and is used to fight against any opponent he encounters. 

As the leader of the SPACE PIRATES, CAPT. SPACEBOY is an adventurous man who desires to explore the galaxies and seeks a greater purpose in his life. He is also shown to be deeply sensitive towards those he cares about. CAPT. SPACEBOY notably appears to be a talented musician as he created his own SPECIAL MIXTAPE out of his love for SWEETHEART. However, CAPT. SPACEBOY does possess a rather emotional persona whenever he suffers under his breakup with SWEETHEART or her overbearing personality. This transforms him into the vengeful SPACE EX-BOYFRIEND, who only comes out only if SPACEBOY is angry.