Travel to a Xanadu of childlike delights—go-karts, rock climbing, laser tag, mini golf, bumper cars, a dazzling arcade with more than 150 games—all housed under one bi-leveled pleasure dome. For $18, today's Groupon gets you a four-hour unlimited pass (a $40 value) to explore Amazing Jake's, a 90,000-square-foot plus warehouse of sensory stimulation. The unlimited package listed on Amazing Jake's site for $21.99 only gets you three hours of fun and $5 of video and redemption ticket games. This deal gets you an extra hour for a lower price, plus unlimited video games so you can come home an over-stimulated pizza-fueled champion of joy.Follow @Groupon_Says on Twitter.