Just saw this on TCM and it still has the magic. This is recognizably a Taiji Yabushita film, in that he takes much of his style from classic Disney--fluid (maybe not as fluid as Disney) movement, use of music and imagery, animal sidekicks. It's not as emotionally powerful as his The Orphan Son (his masterpiece, I think), or as all-around well done as Alakazam (his collaboration with Ozamu Tezuka), or as historically important as The White Snake (which influenced Miyazaki) but it has its virtues--the inventive way the hero appears and disappears, the 'transformation battle' that occurs at the climax, the lifelike sword fights of the prince...not Yabushita's best, but still up there, somewhere.