Trade 10 brains for a jetpack is a mission in Ratchet & Clank, taking place in the blarg research outpost on planet Gaspar. While Ratchet and Clank searched the planet for an XK-81 Jetpack, they encountered the Brain Scientist, a non-hostile blarg who possessed the device. He agreed to relinquish the technology in exchange for ten telepathopus brains.
Walkthrough[]
Completion of this mission requires the collection of ten telepathopus brains. These items are found either inside purple egg sacks, which contain a single brain, or within live telepathopi, which function as minibosses and yield three brains upon defeat. While 90 brains are scattered across the various islands of Gaspar, many remain inaccessible until the Jetpack is obtained.
From the Brain Scientist's location, a single brain is located in an egg sack to the left. A path of rocks leads down to a small island in a lava lake containing another brain; sandsharks in this area can be managed with the Pyrocitor and Mr. Zurkon. To the left of this island, a larger landmass contains three additional brains guarded by sandsharks and toxic crabs. The toxic crabs possess high durability, making the Predator Launcher or Pixelizer effective choices. After collecting the brains, activating the tripad lock lowers a forcefield, allowing access to a higher rocky ledge where another brain is located.
A pool of lava separates this area from the next, requiring the use of a Swingshot on several versa-targets. The following section contains two more brains and more toxic crabs. While a live telepathopus can be seen nearby, it may be bypassed in favor of a higher area populated by alien swarmers and alien snappers. Collecting the two brains in this upper area brings the total to ten. Three versa-targets provide a Swingshot path back to the Brain Scientist.
Upon returning the brains, the Brain Scientist grants Ratchet the XK-81 Jetpack. He then offers an infobot in exchange for an additional 20 brains, continuing into the mission "Trade 20 brains for an infobot".