Is the above all we have to emphasize about the game -- two-player game mechanic? It's not the be and end all as there's much more on offer here, though there are some fine and fun-filled moments with Crash using hapless Evil Scientist Dr. Cortex as a snowboard, etc. as they pool their resources with niece Nina Cortex to take on the Evil Twins.Good-looking graphics, catchy music in a style of its own, low level of frustration although the saves could have been more frequent when testing new ground. Great variety between sets that get more imaginative and entertaining as the game progresses. Much humour delivered in a fun storyline, occasionally a little beyond the average five- or six-year-old but without detracting from the experience. I would expect children of that age to require adult assistance at least in places if not most of the time. Certainly great to play through together with your child and a pleasantly mellow change for adults from the stress of the likes of Doom 3.
An endearing facet in the Crash series of pretty decent games. Certainly an enjoyable experience that's difficult to fault once you get going properly. For this reason, I would suggest playing the game through the first time taking only the crystals that are easy to get so as to keep the momentum and maximize rewarding play. Even I got through it without the assistance of a walk-thru, however, so it's not as if there are many difficult sticking points.
Also in the Crash series for the Xbox: Crash: the Wrath of Cortex (Twin Sanity's platform predecessor) and Crash Nitro Cart, a sort of Mario racer which is well rated. Time to scoop up some bargains.