Sprocket the robot is inside Sully's Paraphernalia. You will need the Steam Generator (trash by Cantina) and Sully's key (jump onto the robot crab by the Living quarters door). Use the Steam Generator set at minus 5 (-5) to open the door, and Sprocket is to the right. Ring the bell on the counter and click on him to have him follow you.
You find the pie.
The flying robot drops the robot crab on it
click on all three of the window to free the robot
After you get in Sully's shop,just ring the little bell on the left of the robot:)
You throw it on the hot thing and it cools off.
You jump on the top of it, and you will get the crab and Sully's key.
You find it on the island al the way to the left.After that, you break it with the mallet and pour it on the hot thing to get into the building
he wants to help you break the crab over the hot valve.
Find the weed wacker and attach it to the robot body, which you also have to find and activate.
whoever put dat is stupid just leave the room thats all
its in the museum on mainstreet of steamworks island :)
Locate the items that can access the information sources on the island, including the helpful robot named Sprocket. Finish building the Mech Walker so that you can battle the plants that have taken over the island, and find the missing inhabitants of Steamworks Island. (for solutions, see the related questions below)