Canister 1: Sitting in the middle of the battlefield.
Canister 2: Sitting at the back of the battlefield.
Canisters 3-6: Sitting inside the 4 AT-AT's, after defeating them.
Head to Hoth 2 by going to the back of the battlefield.
Canisters 7-10 (Free Play): Sitting inside these 4 AT-AT's, two are in the middle. One is on the right side, and one is on the left side.
Unlocked Characters: K-3PO (6,300)