Jungle is an indoor family entertainment center for children under 12. It's a huge play structure (20,000 sq. feet) with tubes, slides, mats etc for kids to run around on. There is also an arcade. Lots of fun for kids and a sad, dimly lit cafeteria that parents seem to congregate in. There's also a small toddler section, not as great. My main complaint (as a helicopter parent) is the difficulty in supervising your kids - I can't possibly follow my 5yo through here, as the structure is really a maze with outlets everywhere. Otherwise, your kids can really blow off some steam here, particularly in the winter months.
Adults are free, kids ~ $8.