Chapter 6: Battle of Takodana - Castle Corridors
You'll be swamped by First Order troops as you escape the castle, but there's always time to snuffle up a few minikits along the way. Grab them as you go when you get outside in Story Mode, as there's no backtracking for the most part.
Minikit #1 - Free Play Mode
There's a door to the right at the start of the level. Use the dark force to break off the lock.
Now cut your way inside using a lighsaber.
Garb the minikit and move on.
Minikit #2 - Free Play Mode
Over on the left is another door you can use the force to open.
In the next room, start smashing up the furniture until you've got yourself a pile of bricks.
Use them to make a BB-8 platform. Hop on and grab the minikit when it's revealed.
Minikit #3 - Free Play Mode
There are three statues that you need to restore using the force. The first one is near the start of the level by the door that leads outside.
The second is next to a cracked crate next to the area where the shootout takes place.
The final one is in the last area. Grab it before the showdown with the hardcore Stormtrooper.
Minikit #4 - Free Play Mode
When you get outside, you'll see a pool to the left.
Hop in with Ackbar to get the parts for the minikit.
Minikit #5 - Free Play Mode
As with the Story Mode, when you get outside, cut open the bars blocking the access hatch nearby and go on through to the area above.
Head up the steps at the back and use the scan ability.
This will reveal a silver Lego crate.
Blow it up to get the minikit.
Minikit #6 - Free Play Mode
Remember that cracked crate from the first time around?
Bash it open to find the minikit.
Minikit #7 - Free Play Mode
Use the force to shift the TIE fighter wreckage, which is humongous, so you can't miss it.
Switch to Ackbar and dive into the pool to get the minikit.
As you near the end of the level, you'll see two plugs on the left that you can grapple.
Start pulling and build a minikit from the debris.