The Thruster-Pack was a special rocket upgrade to Clank's Heli-Pack. It was fitted at Bob's Roboshack on planet Pokitaru for 2,000 bolts. In addition to all of the Heli-Pack's basic moves, the Thruster-Pack had a built-in power-slam to open special locks in the ground. Furthermore, it also allowed Ratchet to hover above ground, giving the Lombax the capability of strafing. This last function was removed in all future games, though Ratchet instead strafed on his own.
In Going Commando, the Thruster-Pack loses its power-slam function after Ratchet obtains it at Clank's Apartment in the Bogon Galaxy.