Rides geared towards children generally are a variation on transportation or spinning rides (either horizontal or vertical), with manufacturers always looking to create unique versions of the ride experience.  Some attractions allow the rider to control the speed and motion of their ride vehicle, like the Hand Crank ride by Zamperla.

The Hand Crank railway was added to Great Adventure as part of the brand new Looney Tunes Seaport area of the park in 1999.
Looney Tunes Seaport, added to the park as part of the "War on Lines" which saw the introduction of more than twenty five new rides, became the park's second section totally dedicated to the amusement of children and their families.

Unlike all the other rides in Looney Tunes Seaport, the Hand Crank attraction (which also was often referred to as Hand Cars) oddly did not have a Looney Tunes character name tied to it or feature a formal ride sign.  So instead of something similar to Wile E. Coyote's Hand Pump Devices, the attraction was simply labeled as Hand Crank on its safety notification poster, and nothing more.

The Hand Cranks were also unique among the rides offered at Great Adventure in that they were completely guest powered. The small vehicles were driven by pumping the handle inside the car which powered the wheels beneath to drive it along the track. The gearing of the handle allowed children to drive themselves along with little effort.
Despite the ease of use, children who were used to riding passively on other powered rides found little excitement in something they would have to drive themselves. The ride attendant would often have to push children back to the station after they ran out of energy or ambition midway through the track.  A special push pole was even designed to assist the ride operator in getting the car back to the load/unload area.
The Hand Crank cars often sat closed except on the busiest of days when crowds were looking for additional rides because line were too long for other attractions.
Before the start of the 2008 season the Hand Crank cars were removed and a new concrete pathway was poured to connect the former Koala Kanyon restrooms to the Looney Tunes Seaport area. This allowed guests to use the restrooms that had been blocked off with the closure of Koala Kanyon at the end of 2006.