Pretty good. This is a little more showy in terms of graphics than it is smooth in terms of animation, but ultimately it's still really damn good. The game is colorful, the gems are really fucking hard to get, and the soundtrack is well done. I liked that the choices were varied but simple, however on replay I realized that there's really only one path to the end (Natives and Forest simply don't have routes) and that kind of left a sour taste in my mouth, since it tamped down the replay value considerably.
Factoring in that you can replay the dead-end routes like Natives and Forest for infinite gems, and that the gems are really only useful for upgrading your ship in the final level (why do you collect gems during that level, anyway?) it just seemed like this was a little lacking as a game. It makes up for these shortcomings by being very attractive, though.
Solid submission, but not really worth more than one playthrough.