The combat system is probably the most developed aspect of the game, but it still falls short of being interesting, thanks primarily to the extremely unintelligent and useless enemies. Most bad guys in the game tend to run at you in packs, and the one you happen to be targeting will attack frequently, while the rest just stand around, periodically trying to hit you, though rarely ever doing a very good job of it. Once you've upgraded your mallet to a decent level, practically every enemy in the game--human and dinosaur alike--can be done away with fairly easily. There are a few difficult bad guys here and there, but they're pretty few and far between.
Though Dinotopia's gameplay is entirely lackluster, the game's graphics actually aren't bad at all. All of the environments contained within Dinotopia, though fairly low in polygon count, are quite nice to look at, with some unique and aesthetically pleasing design elements. Every character in the game looks reasonably solid, though not great by any means. This is most apparent in cutscenes, where characters don't move their mouths at all while talking and move around in a pretty jerky fashion. The dinosaur characters definitely look a lot better than the humans, but both have their distinct flaws. Technically, the game does run very smoothly, and frame rate drops or graphical glitches are nowhere to be found. Compared with the GameCube version of the game, Dinotopia on the Xbox definitely looks a bit cleaner and brighter, but otherwise, the two versions are practically identical.
The combat system is probably the most developed aspect of the game, but it still falls short of being interesting.
The game's sound, however, is on the other side of the fence--especially in the area of voice acting. Every character in the game sounds like he or she was voiced by some two-bit actor the developers yanked out of a dinner-theater production of Hamlet, complete with cheesy British and Scottish accents. Drake's and Jacob's voices are probably the most offensive--they sound like a bad mixture of Scrooge McDuck and Darrell Hammond's Saturday Night Live impersonation of Sean Connery. Aside from the atrocious voice acting, most of the in-game effects are pretty sparse at best, with a lot of repeated thud, smack, and crash effects that seem more silly than anything else. Most of the music in the game is of the Renaissance Faire ilk, with lots of flutes and acoustic guitars. It's actually probably the best aspect of Dinotopia's audio presentation, but it's still not all that great. Dinotopia does support Dolby Pro Logic II surround sound, but it doesn't use the support particularly well.
Dinotopia is, more than anything else, just a poorly designed game. While it may have some reasonably pleasing visuals, the tedious nature of the story and gameplay, coupled with the cringingly bad sound, simply makes the game an unpleasant experience in general. Only the most die-hard of Dinotopia fans will find anything to like about The Sunstone Odyssey, and all others should definitely look elsewhere for their action adventure game needs.