Many of the Valley's outdoor paintball parks look like glorified junkyards, littered with precisely the kind of old industrial waste barrels and weathered wooden fortresses your mother would've warned you not to play on -- which, of course, is part of the appeal. But at Westworld's indoor Xtreme Pursuit, a cavernous warehouse stuck in the shadow of the Grand Avenue overpass on West Camelback Road, the two fields are stocked with tournament-quality inflatable cylinders, cones, and "tombstones" made of the same vulcanized material used in heavy-duty river rafts. The refs can be cool or cruel, depending on their attitude of the day, but most are well-trained in airgun repair -- a plus -- and can fix a jammed cocker, impy or timmy faster than your opponents can reload their paint. Hard-core ballers, who universally praise the fully stocked pro shop, may bemoan the family-friendly facility's overabundance of youngsters and noobs. But hey, that just gives you more easy targets to practice on.