Gadget Twins

While aimed at the younger player, Gadget Twins can still provide some challenge to the seasoned gamer. Older gamers may find the cartoon-style graphics a little too cutesy-pie for their taste, however, so it's best to buy this one for your kid brother or sister and then borrow it when you get tired of hammering aliens. You can even team up and play co-op with your brother or sister to gain points in the domestic arena. (We're talking family values here.)

Six graphically distinct levels and lots of stuff to do (such as buying a variety of weapons, and searching for the purloined Dazzling Gem) make this more than your standard hack and slash title.