All Collectibles in order as they appear. The characters used are just examples. Of course, you can use whatever character you like with the according abilities ;-) :
Part A: Finalizer Hangar
Use the dark force to pull away cargo that blocks a door. Go through and enter a little room. Pull down two wall decorations with the dark force and build a device that delivers a Minikit.
Same room at the back. Use the force to get the Minikit Parts. Then build it.
Shoot 4 mouse droids
Build a bridge over the gap underneath the command center.
Part B: Star Destroyer Exterior
Shoot all 30 turrets
Win the race. Starts inside the Star Destroyer.
Shoot 5 Tie Fighters that carry a pink bomb
Part C: Jakku Graveyard
At the beginning there is a red wall to the left. Use the dark force to break it.
Inside the wrecked ship. Climb some frames to the right. The Minikit is hanging on the frame.
On one of the levels, there is a door you can cut open with a lightsaber
At the exit door, build a platform for BB8. He'll jump up onto some pipes where the Minikit is.