For this achievement you will need the dlc pack: Lego Movie Aquaman Level Pack 2
Once you have loaded into the level The Final Battle
Minikit = Mk
MK 1. There are 5 gold statues to destroy upon smashing your 5th statue the minikit will unlock, locations below:
2 in first area
1 in the hidden area in centre of room where the rest of the Minikits are
2 In room where you restore power (1 is hidden in dark area on far right)
MK 2-5. Once you have defeated the first set of enemies and need to move on in the level go to your left and there will be 2 holes go through the top hole next to the graffiti platform please see below image:
MK 2. Go to the far right select either the Joker, Catwomen or Batman hold
to use your auto gadget go in hole and pick up MK2.
MK 3. Now select a electric box shrinking character complete puzzle the box, this will open to unlock MK3.
MK4. Now smash up Lego object near the entrance to build pad select deadeye character and use his
shoot function to trigger the MK to appear from base plate on ground.
MK5. You will need either King Nereus or Poison Ivy character to hold
to grow the plant to revel MK5.
Now you must fully complete the level
and wait for the studs and collectables to count and not quitout then pop achievement unlocked.*If you require the graffiti for your 100% on this level it can be found in the first area above where you help the seaman out*