Find the Jetpack is a mission in Ratchet & Clank, taking place in the Blarg Research Outpost on planet Gaspar. After Ratchet and Clank obtained the Grindboots in the Depot, they were able to explore the planet further searching for their original goal, the XK-81 Jetpack, that could be used for the Galactic Rangers. The two along the way encountered the Brain Scientist, a non-hostile blarg in possession of a Jetpack, willing to provide it in exchange for telepathopus brains.
From where your ship landed, take the grindrail located to the right of the platform with the elevator leading down. Grind across here, leaping across to adjacent rails with + when needed and jumping over gaps with , and whacking versa-mines that appear on the rail off using the OmniWrench with .
At the end of the rail, you will arrive on a metal platform with stairs leading up to a group of chompers. Kill them and a bridge will extend leading forward to a platform with sandsharks, also easily dispatched. You will hear a blarg scientist, the Brain Scientist, beckon you over on your right, across a small stream of lava. Hop over and speak to him.
Speaking to the Brain Scientist will commence the mission "Trade 10 brains for a jetpack".