The Thruster Pack is a gadget in Ratchet & Clank, Going Commando, Up Your Arsenal, and Tools of Destruction. It is a rocket upgrade for Clank installed at Bob's Roboshack, that allows Clank to switch his feet to rocket boosters and his arms to wings. Like the Heli-Pack, this allows Ratchet to hover above ground, to high jump, and to long jump.
The Thruster Pack is installed in the original Ratchet & Clank in Bob's Roboshack on planet Pokitaru for 2,000 bolts. In the original game, it provides additional functionality in the form of a power-slam and strafing, though in later games, it has the same functionality as the Heli-Pack and is merely an aesthetic choice for the player.
The Thruster Pack typically allows Ratchet to perform the same three moves as the Heli Pack: the high jump, long jump, and glide. It can also smash through crates when long jumping through them.
In the original game, it provides additional functionality. It has a built in power-slam to unlock special locks on the ground, and the ability to strafe and long jump in mid-air after high jumping.
In the entries, the Thruster Pack has the same functionality as the Heli-Pack, and is merely an aesthetic difference. In Up Your Arsenal, the Thruster Pack emits black flames instead of red when using Klunk.
Behind the scenes
Early builds of Ratchet & Clank show that the Thruster Pack was going to feature a side jump ability.
It reappeared in the 2016 reboot game, installed again in Pokitaru, though this time by Al as Bob has been removed. It can long jump after a high jump in mid-air like the original, though it no longer features strafe (which Ratchet can do on his own) or power-slam, and instead can be used to unlock special bolt cranks in combination with the OmniWrench.
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