PARAMUS, N.J. — NRG Adventure Park will open a 59,000-square-foot entertainment venue in the Northern New Jersey community of Paramus. The space is located above a 100,000-square-foot grocery store at Paramus Park South shopping center and will house a ropes course, trampolines, a climbing wall and virtual-reality games. Jamie Sackheim of TSCG represented the landlord, a joint venture led by Heidenberg Properties Group, in the lease negotiations. Jerry Welkis and Stephan Miller of Welco Realty r