1997, the park announced the possibility that the new coaster would be closed for the remainder of the season. Six Flags Great Adventure spent eight months modifying the ride. The attraction originally had 400 LIMs, but another 32 LIMs were added during the 1997–1998 off-season. The Chiller did not operate on a full-time basis until 1998. Six Flags Great Adventure invited 68 pairs of twins to attend the ride's reopening on May 1998. The ride already had a negative reputation, having become a "200-foot reminder" of the Batman & Robin film, a box-office bomb. Ongoing issues and modifications The Chiller faced excessive amounts of downtime due to a number of reoccurring issues. The most prominent issue was that the LIMs required massive amounts of power, which frequently caused the ride's computer to record an error and shut down the ride. Park guests frequently did not know whether the ride would be closed for the entire day. Power shortages and low temperatures occasionally caused the trains to stall on the track in a low area, sometimes in the middle of an inversion. Incidents of stalling were so frequent that Six Flags Great Adventure added evacuation platforms in places where the ride was most likely to stall. On one occasion following a power outage, the Robin (Red) side managed to stall in the zero-g roll itself, leaving 8 passengers stranded upside down, with 12 others stranded partially inverted. The original over-the-shoulder restraints were reportedly uncomfortable, as riders frequently complained of hitting their heads. Attempts were made to improve comfort by adding extra padding. The restraints were eventually replaced with individually-ratcheting lap bars, with the Robin side receiving the change first in 2001, followed by the Batman side in 2002. The Batman track was more prone to closure than the Robin track; it operated for only a few weeks during some seasons, and it did not operate at all during one season. In June 2006, Six Flags Great Adventure closed The Chiller indefinitely following a major incident involving the Robin side. The third car's wheel assembly of the train's third car broke apart during the course of the ride, further damaging the track and train. It remained closed for the rest of the season, while the park considered a major overhaul of the ride. After several significant modifications the following off-season by Premier Rides, which included the removal of the zero-g rolls and