Oscillator Interior

Chewbacca, Han Solo (Starkiller Base), Sentry Droid

First Explosive Charge

A peaceful stroll down an empty hallway ends abruptly when Han Solo and Chewbacca emerge out into the open. The pair must plant explosives in four locations. You can tackle the four spots in any order.

Follow the walkway to the right until a red energy shield blocks the way 11. Shoot the targets on both sides of the frame to drop the energy shield.

Tag to Han Solo and swing up to the ledge 12 with a boost from the grapple handle. Scan above where the walls meet at an angle to reveal another grapple handle.

Swing over to a nearby platform 13. Break down the dark cylinder and use the leftover parts to complete the track. Push the container over the edge of the platform. The container that spills out is a silver LEGO object. Blow it apart with one of Chewbacca’s thermal detonators, then use the remaining bricks to set the first charge.

Second Explosive Charge

Hop over the side of the railing. Battle the stormtroopers that appear while moving toward the back wall 14. When you find a pile of Multi-Build bricks, turn them into strength handles by choosing the left build option.

Don’t pull the handles yet. Go to the far corner of the base 15. A security droid calls for help. A large number of stormtroopers continue to appear until you silence the security droid, so make it your top priority. Salvage one of the yellow valve wheels from the three canisters, and return to the strength handles.

Pull out the strength handles, then tag to Han Solo. Place the valve wheel and then turn it to raise a container into the open space above the grating. Target the grapple handle and pull out the container, which holds the bricks needed to build another explosive charge.

Third Explosive Charge

Climb the central steps and turn past the door where Han Solo and Chewbacca entered the area. Stop when Han Solo takes note of a grapple handle 16. Pull on the handle to spin the column and shake loose a pile of bricks. These bricks become an explosive charge when assembled against the column.

Fourth Explosive Charge

The final spot to plant charges is on the lower level. The first step is to recruit some help. Tag to Chewbacca, then pull the strength handles to get the Multi-Build bricks you need to free the Sentry Droid 17.

Aim the bricks at the top, right spot first. The shelf moves aside, and deposits Sentry Droid on the lower shelf. Switch the Multi-Build bricks to the lower, left location to drop Sentry Droid to the ground. It’s now unlocked for use!

Move Sentry Droid to the nearby interface in front of a column 18. A part of the walkway slides open. A lift brings up a pile of bricks that become the final explosive charge when assembled against the column.