When you come to the arcade style room, there is a place in the corner with three red shimmering pots. If you turn into Poison Ivy, you can use her power to grow three tall flowers. Go ahead and jump on them in order to jump in the take. Turn into Water Suit Robin to sink down and get the Seventh Canister.

There is a lot of junk to pick up here. You can use it to make a helicopter, but it seems like it does nothing! Actually it does. Go to the control panel as Technical Suit Robin. Use the controls to send the helicopter on the far side of the room, and you will see two sets of lights. They have five lights to them each, and only a few are glowing green. If you move the helicopter up against these lights, then you will make each of them glow green. The Eighth Canister will appear.

After the disco area, there is a canister that you can pick up here. You’ve got to go down and to the left, by a garbage truck. Smash up some stuff here, and you should be able to get yourself a pair of orange handles that will fit on the truck itself. A super strong character can move the truck, and you may notice the shiny metal thing that is revealed. Blow it up with an explosive, and you will have the Ninth Canister.

When you go through the one area that was on fire, you may notice that there was a place that you were not able to get to before because the parts you needed to assemble it were burning. You can now become Heat Protection Suit Batman and built the ladder needed to go and get it. Glide to the right over to the one area with the three gold studs, and then use a high jumper character to grab the Power Brick. I found that I could only make this jump with Harley Quinn.

In the last room, there is an area closed off by glass. Of course, it is no problem for Batman in his Sonic Suit to get past that. You can then go into this tiny room and smash up a bunch of stuff, and then assemble it to a large timer. There is a shock generator here, and Joker can use it to make the timer go off. The Tenth Canister will appear.