You need to go to the big metal silver thing that is red and burns you. Then grab the robot crab give it to you robot. And he will drop it and you will go somewhere. Which is a surprise that I don't want to tell you! =)
it is a little crab robot with water inside of it
When u get the crab, u go 2 the hot tunnel thing and use the water 2 cool it down
The robot crab is full of cold water, which you can use to cool down the Hot Hatch at the Hub on Steamworks Island. However, you will need Sprocket the Robot to help you. Find the robot at the Living Quarters to the far left of the main part of the island. Jump on him to get him and Sully's door key. Using the Steam Generator (trash bin at the Cantina), open Sully's door and find Sprocket. Ringing the bell on the counter will awaken him. Take him and the crab to the Hot Hatch at the Hub. Use the robot crab and Sprocket will drop it on the Hatch, cooling it down so you can go underground. That is the only use for the crab.
You can use the cold water inside the crab to cool the Hot Hatch at the Hub. When you jump on the robot crab at the Living Quarters, you also get Sully's key. Go left and pick up the Old Vine from the roof of the Storeroom, then go to Sully's. Open the door by setting the Steam Battery to -5, and you will find Sprocket the robot. Ring the bell to wake him up. You will need him to drop the robot crab on the hatch.
Use the water-filled Robot Crab to cool down the "hot hatch" at the Hub. You will need the robot Sprocket from Sully's in order to use the crab.Once you have the Crab and Sully's Key, use the Steam Generator (in the Cantina trash bin) set at minus 5 (-5) to open Sully's. Sprocket is to the right and can be awakened by ringing the bell. Click on him and he will follow you.Sprocket drops it on the hot door
The robot crab is full of cold water, which you can use to cool down the Hot Hatch at the Hub on Steamworks Island. However, you will need Sprocket the Robot to help you. Find the robot at the Living Quarters to the far left of the main part of the island. Jump on him to get him and Sully's door key. Using the Steam Generator (trash bin at the Cantina), open Sully's door and find Sprocket. Ringing the bell on the counter will awaken him. Take him and the crab to the Hot Hatch at the Hub. Use the robot crab and Sprocket will drop it on the Hatch, cooling it down so you can go underground. That is the only use for the crab.
You don't need to use anything
The robot crab is full of cold water, which you can use to cool down the Hot Hatch at the Hub on Steamworks Island. However, you will need Sprocket the Robot to help you. Find the robot at the Living Quarters to the far left of the main part of the island. Jump on him to get him and Sully's door key. Using the Steam Generator (trash bin at the Cantina), open Sully's door and find Sprocket. Ringing the bell on the counter will awaken him. Take him and the crab to the Hot Hatch at the Hub. Use the robot crab and Sprocket will drop it on the Hatch, cooling it down so you can go underground. That is the only use for the crab
On Poptropica, Steamworks island you are using the robot crab to cool down the bell. Once you have cooled the bell down you can touch it without being burned.
There is this robot crab with water in it that you find to the left of main street. when you are back at the burning hatch, crocker (if you have gotten him, if not, go back to the left of main st and figure out hoe to get him) will smile and your poptropican will say, "It looks like he wants to help!" you then go to your inventory and click USE on the robot crab and then the robot crab will be held by crocker. he will drop it onto the hatch and then that enables you to open it!
The robot crab is full of cold water, which you can use to cool down the Hot Hatch at the Hub on Steamworks Island. However, you will need Sprocket the Robot to help you. Find the robot at the Living Quarters to the far left of the main part of the island. Jump on him to get him and Sully's door key. Using the Steam Generator (trash bin at the Cantina), open Sully's door and find Sprocket. Ringing the bell on the counter will awaken him. Take him and the crab to the Hot Hatch at the Hub. Use the robot crab and Sprocket will drop it on the Hatch, cooling it down so you can go underground. That is the only use for the crab.
After you have gotten the key from the crab go to sully's store and open up the store then go in, there is a robot asleep on the ground ring the bell next to it and it will wake up then go to the hot tunnel thing-y use the crab the robot will pick it up and drop it on to the tunnel