Some kids like all types of toys. Others are so thoroughly consumed by a certain brand of interlocking plastic brick systems that they eschew other playthings and would probably do the same to food, water and sleep if not occasionally forced to put down the LEGOs. For the second type of kid, heaven is the LEGO Store at NorthPark. It's packed floor-to-ceiling with LEGO sets of every variety, from Star Wars to Ninjago to Chima, and with parents and kids, locked into the fun of picking out toys together.