How to unlock The Atom | General tips LEGO Batman 3 Guide
Last update: 11 May 2016
The Atom will allow you to enter small rooms.
Surely, you've encountered a Minikit or a Character Token that was out of your reach and the hint was mentioning a yet unknown character - The Atom. This hero has a special power that allows him to shrink to the size of an atom, giving you the ability to enter rooms unavailable for other characters. If you have no Red Bricks for which you could buy the ability to shrink your heroes, Atom should be your choice for picking up all the collectibles.
To unlock The Atom, you have to complete The Big Grapple mission. Just as in the case of picking up collectibles, the best moment to unlock him is right after completing the main campaign, because it's necessary for you to already have Plastic Man and Batman's Arctic Suit. After a short cut-scene, switch to Plastic Man and approach the platform shown on the picture. After stepping onto the other side, you will not only be able to move around freely, but you will also obtain a Minikit.
The place shown on the picture is the area where you can unlock The Atom. Destroy all the silver objects and build a machine from the bricks on the floor. You can use Cyborg's Demolition Suit.
After completing the task, go to the left side and put out the fire using Batman's Arctic Suit. Then, use the machine to pull the lever located higher.
Go to the left side and use the vehicle located there. Face the machine that you've built (if you have any troubles with the camera, just use the key responsible for looking down). When driving, clean up the green toxic substance visible on the picture.
After facing the machine, the vehicle will land automatically. Get out of it and use the two levers that will appear nearby. After doing that, you will unlock The Atom Character Token.