Sky Rocket II is a steel roller coaster model made by American manufacturer Premier Rides. The first Sky Rocket II was at Six Flags Discovery Kingdom, which opened on June 30, 2012, and the latest is Sky Loop at Riyadh Winter Wonderland in 2022. The ride model features a height of , a length of , a maximum speed of , and includes one inversion. The ride has been noted for its low-cost and small foot-print.
The production for the Sky Rocket II model began in with its announcement in 2011 with the introduction of for Six Flags Discovery Kingdom. Originally for the prototype model, there would be two cars with two riders per row with three rows in total, though expandable for other consumers. The model for Six Flags opened on June 30, 2012. Tempesto at Busch Gardens Williamsburg introduced the model using three cars in 2015.
The track reaches a height of , the trains are accelerated forward by linear synchronous motor (LSM) launch, but do not reach the maximum altitude and thus travel backwards through the station, continuing to accelerate, almost reaching the apex of the non-inverting loop. In the subsequent forward passage of the station, the trains are accelerated again and thereby reach the maximum height and speed of . It is followed by an inline twist, the exit of which leads to a downward dive, which initiates the passage of the non-inverting loop. In the station, the trains are then brought to a halt.
Drakko at Salitre Magico (former Zombie Ride at Bosque Mágico) is the currently the only Sky Rocket II coaster with a sliding loading platform allowing two train operations. One train is slid into the circuit while the other train is loading at the platform. As Zombie Ride it was also the only Sky Rocket II to complete two full laps of the circuit which was not continued after moving the coaster to Colombia. Drakko still uses 12-passenger trains like Superman: Ultimate Flight.
Premier Rides has built ten Sky Rocket II coasters. These are listed by order of opening.