Chapter 9: Destroy Starkiller Base - Oscillator Interior
The last of the minikits can be picked up during Han and Chewie's bomb-planting run.
Minikit #1 - Free Play Mode
Head down the stairs and to the left.
There's an access hatch along the wall.
Head through to the other side and pick up the minikit.
Down the stairs and to the right, you'll spot a grapple plug that needs you to build strength handles before you can reach it.
Ignore the handles and build over to the right side instead to open the box holding the minikit.
Minikit #3 - Free Play Mode
You have to destroy four lamps to get this one. The first is down the stairs to the left, near the access hatch.
Now head to the right side of the staircase. The next lamp is near the box where we picked up the last minikit.
Keep heading right to find the third lamp.
For the fourth lamp, lift the lid off the robot port all the way over to the left and then use it to deactivate the barrier.
Destroy it for the minikit.
Minikit #4 - Free Play Mode
This is in the same area as the fourth lamp, behind the laser barrier.
Destroy the gold panel at the back.
This will net you the parts for the minikit.
Minikit #5 - Free Play Mode
Back on the top floor, head right and use the grapple plug to reach the top platform.
Switch to C-3PO and use the terminal to open the door.
The minikit is inside in a cloud of toxic gas. C-3PO is impervious to its effects, so waddle through and grab the minikit.