Nintendo continues to stretch the definition of "videogame" with Endless Ocean, a mind mellowing, interactive Quaalude in the guise of an underwater treasure hunting safari.

Oddly, considering the pacing and relative calm of the graphical adventure presented, Endless Ocean is not the Wii's prettiest game -- not by a long shot. Nor is it particularly conducive to the multiplayer shenanigans you've come to expect on Wii; it's about as competitive as a bout of glandular fever.

Basically, you hit the open ocean in a research vessel, jump off and then point and click your way around underwater, exploring reefs and wrecks, looking for fish to tickle, dolphins to train, or sharks to pet while hardcore serenity music washes away your real life strife.

Probably a little too hippie dippie for the serious gamer -- no harpoon guns to be found -- and little heavy on the meditative transcendental schlock to even rank as a videogame by conventional standards, but as far as achieving its goal of computerized relaxation therapy for the mass market, Endless Ocean really is all that; embarrassingly enjoyable, in fact.

Plus, it's priced appropriately low; file it under impulse buy or grandmotherly afterthought if not next-best-thing to a hangover pill.