Metacritic reviews

There is the usual gamut of silly voices and gang of goody-goody creatures, including a gluttonous green tiger, but the cuteness is kept to a minimum. The amalgam of fairytale, sci-fi and Greek mythology is exciting, the backgrounds dynamic, the music catchy, the pace furious: kids will love it.

The story is harmless enough, with its bloodless violence and happy resolutions. The images are a bland mixture of cliches lifted from Tolkien and "Star Wars," among other sources, served up in wretched TV-style animation. Little children may like it, but they won't be richer for it. [06 Jun 1985, p.31]

The Secret of the Sword is a Saturday morning kiddie cartoon stretched out to feature length, which by some lights is an awfully long time.

Indistinguishable from any of the He-Man TV episodes or videocassettes in any aspect other than length, which is probably a moot point at best. This is a ground-out effort designed to please the calculated expectations of He-Man's loyal audiences.