Chapter 8: Starkiller Sabotage - Starkiller Crash Site
There's only a pitiful three minikits to find in this section, and you'll need to pick one of them up in Free Play.
Shoot down five sentry drones for this minikit. There are two at the start of the level.
Shoot them both and move on.
The third is at the cliff edge by the grapple plugs.
The fourth is hovering near the gun turret.
After sliding along the rope and landing on the other side of the force field door, you'll find the last one.
At the start of the level, smoosh the snow piles to find parts for a stomper.
Stomp over to the left and right onto the snow pile at the edge of the cliff to find parts for a minikit.
Minikit #3 - Free Play Mode
To progress tough the level, you'll bypass the laser barrier with the help of a conveniently positioned rope.
Go over to the left and through the small access hatch.
The minikit is guarded by a yeti and you're going to have to get rid of it.
Once that ugly business is taken care of, use a lightsaber to cut through the ice at the back of the cave.
The minikit is just behind it.