While I was not able to play this game directly, reading through it, it looks like so much fun. It's simple in how the story progresses and the Jungle Master book offers a lot of detail and options for the players and the help those who want that frame work. The story to get to the center of the jungle and how you get there is customizable and, because of the dice rolls, has excellent replayability with the same group. 
The Character creation is highly customizable and easy to learn. You divide 10 by two stat groups and then distribute that amount of points from there! The special abilities you can give your character are fun and engaging. They really allow for spotlight time between players, with each having their own moments.
The one thing I didn't see was what the dice are used for as players. There is a mention of what kind of dice you need and how to use those stats in the dice rolls, but no "This dice is for this....". I would also get rid of the mention of D&D. One of the best points of advice I had gotten was to focus on your game. A lot of creators do this, especially in the beginning (we did), but there's no need to. It doesn't add to your game.

Overall, I cannot wait to actually play this game with a group of players. This looks like so much fun and easy to pick up for a one shot!