The first two puzzles were not very hard at all, but i guess they do kinda help you get in the right mind set for solving the third puzzle. It seriously took me like an hour figure that last one out! Super tough...
My only gripe is that the game could really use a restart button, it kinda sucked having to go to the main menu to start over. Even so, I really liked the puzzles, and the art was neat. Some of the animations made me LOL... I messed up on purpose a few times just to watch them again, hehe
All in all, I would definitely recommend it to other fans of the logic puzzle genre, definitely worth 99 cents!
Update: They added a new level as well as a restart button! good to see that the developers are making this app even better :)
csteil about River Cross Logic Puzzle Game