In the one room where the man is swimming in toxic waste, there is an area with bars here on the higher ground. Blow them up with an explosive, and you can assemble some parts into a small helicopter. Go over to the panel as Technical Suit Robin, and you can work the helicopter to rise and fall. The canister is up on the ceiling quite high, and you should be able to get the Seventh Canister.

The next canister is located just after you get to the area with lasers and the robot. After you get past it, you will need to place a detonator just underneath the gray grating area, and blow it up. You then need to become a high jumper to get the Eighth Canister.

As you keep going right, you will find two areas that are behind glass. The first has a door that Sonic Batman can shatter. In this room is stuff you can smash, but more importantly, stuff that you can build. Use the pieces here to build a weight, and it will be sucked upward to land on a scale in another area. I’ll tell you where that is in a moment.

In the meantime, go ahead and use and explosive on the next door. Become a toxic resistant character and smash up a bunch of stuff here. A holographic projector can then be made, and it will project a door on the wall. Go through the door and you will be in a new area.

Smash up a lot of things, and you will find a grid on the floor. If we use a tic-tac-toe board left to right, then here is the order. Just picture a tic-tac-toe board with the numbers listed 1-9 from top to bottom. Here is the order: 6, 2, 8, 7, 4, 3, 9, 5, 1. A disco will start up, and some studs will rain from the sky. Also, a poster will slide open, and the Power Brick will be revealed.

Leave the room, and the holographic geneator will bust up. Now, continue until you get to this one area that has a giant scale. Fortunately, you can now leap up on there and get the Ninth Canister.

On the far right, there is a bunch of hot stuff. What you need to do is become Heat Suit Batman and jump on there, and then jump up in the midst of the smoke on top. You will rise up all the way grab the Tenth Canister.