Summary: This is for me a keeper. I do not keep many DS games but this has been played now for many many hours and is 33% complete but will be played again and again. If you like puzzle and strategy then you should think highly of this. Just to highlight to any readers it may be of interest to know I rate the following games highly. Polarium (DS & GBA version), Zoo keeper, Soul bubbles, Mariokart (GBA & DS & SNES) Tetris (Game boy).
Summary: I bought this for my 10 year old, to have as something new at an airport to keep him occupied during the waiting aroud. He was hooked almost straight away, and is still playing as a favourite game a few weeks later!