Summary: Not my all-time favorite game, but I do like it. The easiest level is plenty hard for me, so even if I get good at it, I can increase the difficulty. Not as many different puzzles as I'd like, but I can't complain. I like the relaxing music, and the instructions are easy to understand. I'm happy with my purchase.
Summary: Like the other reviewers, while playing Skip Jack for more than a couple rounds, the game froze and emitted a high pitched beep. Had to turn off the Nintendo DS, let it sit for a minute and then start over again. Other than that, I really enjoy the games on Zenses Rainforest (even more than Zenses Ocean). It's a great way to pass the time when you're sitting with nothing else to do (excellent for endless waiting in a doctor's office or the Dept. of Motor Vehicles).
Summary: I'm not much into video games, but am finding that folks are coming out with more and more games that are interesting for adults. This game has so far been entertaining, and the sounds on the game a pretty good. It's a fun option to play when I am sitting around with nothing to do.
Summary: I think this is a wonderful set of puzzle games. Unique, diverse and fun. What's too bad is they didn't test it well enough and didn't fix some pretty bad bugs. When you get into higher levels (30-40), the game gets harder, until it just presents you with an impossible case, forcing you to just end the game. When the challenge is to get to the highest level possible, it becomes very frustrating.