Go ahead and take on the Emperor until he runs away. You will need to go to the right of the throne, and use the force on a box. You will soon have the First Blue Canister.

You should then jump down into the area below the throne. You should easily find the Second Blue Canister.

If you cross the bridge over to the center area by the elevators, you will see an Imperial door. Go ahead and become an Imperial character and open the door, and then get the Third Blue Canister.

While you are here, you should go around and use a Bounty Hunter entrance, you should definitely find the Fourth Blue Canister.

Go ahead and do like you did before. Where you build the fan and go up on the catwalk to the place where the Emperor is shocking the floor. Go ahead and jump on the tiles he never shocks and take him out until he flees.

Go underneath this area and snatch up the Fifth Blue Canister.

This next one will be in a place where you found several canisters on Free Play. To enter it, destroy all the panels on one side of the wall, and make a small person entrance. Go in as a small character, and then push a box off of a ledge. You can then get to the entrance, and you will find the Sixth Blue Canister here.

If you go to the lower left area, you will find the Seventh Blue Canister.

In this other room. There is a place where a thermal detonator is required to blow away some wreckage. A grapple point will be revealed, and you can use a shooter character to go up to an area to pull it and drop some bricks. You can build a box, and then smash chairs in the middle to make a spinner things. This is where you move the box to and area, and then you use the spinner to turn it. You can then push the piece into place, and ride the elevator up to get the Eighth Blue Canister.

When you get to the area where you fight the Emperor again, go to this upper area and you will find the Ninth Blue Canister.

You will then find the area that requires two Jedis, one on the dark side and one regular to use the force to get up higher. You should be able to claim the Tenth Blue Canister.