This is a very well-done game with lots of polish and good puzzles. It has levels for kids from, I would guess, age 5+, plus adult levels and advanced levels that are wickedly hard. The animation is great, the music appropriate and the controls very easy to learn. My 7 year-old a I love it. It also has an editor, which could stretch the game out if players are able to somehow post levels they've created. I think of it as a cross between Enigmo and Lode Runner.