Instructions
Load "Lego Batman" and choose the level called "The Face-Off" in free play. If you haven't unlocked free play mode, complete the level in story mode. Bring characters with the technology suit, toxic immunity, double-jump and grapple abilities. You also need to bring Mr. Freeze for one of the canisters. You may need to play through the level a few times to collect everything.
Park the bank van next to the five pylons. Jump on all five of the pylons to acquire the first mini-kit canister.
Use the technology suit to turn off the laser defense turrets near the revolving door. Go through the revolving door to pick up the second mini-kit.
Drive a bank van into all of the lights outside. Reassemble the scattered pieces into a large dollar sign to collect the third canister.
Travel to the far right outside of the bank to find a grapple point. Use that grapple point to bring yourself up to the next mini-kit.
Build and use the attract suit inside the offices. Use it to bring 25 bricks over to the container in the right side of the room. When you have deposited 25, some palm trees will grow, allowing you to double-jump up to a ledge on which you'll find the fifth canister and a hostage.
Switch to your character with toxic immunity and bring him to the fight against Two-Face. There is a hole which dispenses toxic sludge which, if you crawl into it, will lead you to the next canister.
Drop into the nearby pool of toxins after the Two-Face battle, and find the next canister sunk inside it.
Bring out Mr. Freeze and head to the back of the room, then drop off to the right. You will see a container leaking water. Freeze the water, then walk out to where the eighth Minikit canister hovers, and double-jump into it.
Proceed to the vault, and destroy the five chests hidden around the area. Three are stuck behind the bars, and two on the main floor. After destroying these, you'll get the next mini-kit canister.
Go into the blue-lighted room, hidden off to the right, where you will find the last canister.
Finish the level and return to Wayne Manor. Enter the Memorabilia Room and assemble the bricks found there into the piece of memorabilia for the level.