Listen to the sound clip 2. 0:42 from Happy Lesson ハッピーレッスン - Video Game Music: 2. 0:42 2. 0:42 This sound is from Happy Lesson ハッピーレッスン - Video Game Music Video game music from Happy Lesson ハッピーレッスン for Dreamcast. Published by DATAM POLYSTAR CO. (2001). Go to the full soundboardwith more sound clips Search