Minikit Guide - Chapter 13 - Lego Batman 2: DC Super Heroes
The minikits you'll obtain in this level will be based on the targets you'll destroy. This is a bit tricky since some of the targets have conditions you must meet before they appear/ count as a minikit.
The following objects are fixed and have no risk of missing:
Cab on the left side of the road, near the park
Bruce Wayne billboards x2
Silver key on the hand of a statue, as your turn to a corner from the park
5 green/purple boxes (appears after destroying a support beam and depleting RJ's energy for the first time)
Here are the objects that have certain conditions:
Two-Face's truck (appears as soon as the level starts; won't respawn if you failed to destroy it to first time. You'll know when you destroy it when a red “1/1” pops up in your screen.
Two-Face's Truck: appears again as you reach the park; won't respawn if you failed to destroy it to first time. You'll know when you destroy it when a green “1/1” pops up in your screen.
There three support beams that you need to destroy to weaken RJ. You need to hit in order/ don't destroy the same one twice. You need to pay attention and avoid destroying them by accident. Having a minikit finder active will help you determine the support beams you need to destroy.
Helicopter on the right side of the bridge. This appears after destroying the third support beam in order and before completely destroying the RJ.
The video below shows you the quick summary of the targets you have to destroy. It took me several attempts to determine the special conditions for some of the targets so carefully read the description I provided above.