You use it at the start of the island, to get the job.
When the crook steals a security cart, Gus suggests that you get the scooter in the Mall office. The code word is FROST. Go to MacGuffin's to get the quick charge device for it. When you leave the office, go to The West Wing, then return to start the cart chase. Go to the top of the escalator (left side) in the atrium and the cart should drive by (it's actually a dummy driver). This sequence can be difficult to start for some reason, as the cart is driving places it cannot go.
You only use the scooter at the start of the game (mall patrol) and when chasing the thief near the end. In the first case, you wreck it.
In the second case, you get it from the mall office, charge it up, chase the thief, and then the scooter is stolen by Eddie the coral snake (true!).
The security cart is driving around the atrium/food court, on paths that are impossible for you to follow. Take the scooter down to the lower floor and over to the left, and you should see the cart pass you. You may have to go left into the mall and come back. When you see the cart, drive to the top of the escalator on the left and follow him down when he passes.
The password is "frost."
It is on the list you get from Gus, and you can actually try them all if you want to. The game will tell you how many letters are correct for each try.
As far as we know, he still has it. He is not seen after he kayoes the crook.
You go to MacGuffin's and use one of the new "quick charge" devices. (Judging from what happens, the scooter might have taken too much power.)
The code word for the scooter cabinet in the Mall Office is the word FROST.
When you have used the password from Gus (frost) to get the scooter, you find that the battery isn't charged. Go to MacGuffin's and get one of the new "quick charge" devices.
The password to the scooter is "frost."
The combination on the safe is 6723. The password code to open the scooter cabinet is "frost."
The word is "frost."
The code for the scooter is "FROST."
You use one in your training, but you don't need one again until later. Gus will tell you about the one in the manager's office (password is frost).
You only have the scooter when you are chasing the security cart around the mall. You use the password (frost) to get it from the Manager's Office, and charge it with the charger device from MacGuffin's. After you chase down the cart, Eddie the snake has the scooter (and may still have it when you leave).
When you are chasing the robber in his stolen security cart, Gus suggests you get the scooter that is in the office. Use the password (frost) to get it. Go to MacGuffin's to get one of the quick chargers to charge the scooter's battery. Leave the office with the scooter, and go to the escalator on the far side of the atrium.
The scooter has a battery, but it needs charging. Go to MacGuffin's and get one of the new devices that is supposed to quickly charge things.
You don't. You have bigger problems. Besides, he might bring it back.
Once you get the scooter from the manager's office (password is frost), and charged it up with the quick charger from MaCGuffin's, drive down the escalator and over to the left side of the atrium. The cart should come across in front of you. Once it does, drive the scooter up the left side escalator and wait for it to pass again.
No one knows, and you do not have to find him. Eddie will come back to help out in the end.
you get the quick charger