The Fortress of Solitude: All Minikits and the Rescue | Lego Batman Movie Story Pack | Lego Dimensions - Camzillasmom - Reviews - Guides - Playthroughs in 2017
At the big fridge that looks like a safe, use Pole Vault and jump the pole to open the fridge. Then use Stealth to get passed the camera and push the ice block outside. Build the minikit.
Use a vehicle with "Underwater Interactions" to pull open the wall with the 3 plugs. In my case Lumpy Space Princess' Lumpy car at Level 3 (Underwater Drone)
At the Superman Laser Platform door, go to the right and open the passage with Fuse Box (Ethan Hunt). Go through. In the Secret Room, use Tracking at the dog house.