Ninja Warriors music was possibly ported by the "sound editor" WIZARDRY MASTER (Norihiro Furukawa), but unknown. Def could've just been Ogura converting his own tunes.
Chuka Taisen sound by Noboru Koshinaka and Isao Mizoguchi
http://chibarei.blog.jp/gsl/pce/gokuchuka/gchuka.html
Iwadare wrote two songs for Space Invaders: Fukkatsu no Hi:
http://web.archive.org/web/200301281...works/pce.html. Other composers are unknown, my guess would be other CUBE staff.