Remember that Earthquake, ET, Shrek, Jaws and Jimmy Neutron were all open every HHN night at one point. In a cost cutting procedure they realized that ridership is low and started cutting the rides one at a time. The first year they made Shrek peak nights only, then the next year cut Shrek and made Neutron peak only, then cut neutron and made Earthquake peak only, ect, ect (I don't remember the actual order of the attractions being taken out of HHN)