Mechanically, Dynastic Hero is quite reminiscent of its excellent predecessor, Dragon's Curse. But while DC has players scale walls as Mouse Man, soar about as Hawk Man, and do all sorts of other crazy things as other sorts of beast men, all throughout a well-designed realm, DH limits them to the form of sword-swinging goofball for the duration of its quest. Not that every sidescrolling adventure game needs a protagonist capable of shape shifting, but so much of what players do in DH--from trekking through uncomplicated tunnel networks to swimming through underground waterways and slipping around ice worlds--feels all too routine, and plenty of strips are not only dull but also drab.
And if you're wondering if being proficient in Japanese is essential for getting through the JPN version, well, you shouldn't have much to worry about. Find a decent Wonder Boy in Monster World FAQ and you'll be set--save for a round of quiz questions with a giant sphinx. But even then, a little trial and error will get you through the day, and the merciful beast does grant you a little leeway.