LEGO Marvels Avengers
65 Achievements
1,500
Earth's Mightiest Hero
Complete the 'Classic Captain Marvel' level with all Minikits unlocked
20
How to unlock the Earth's Mightiest Hero achievement in LEGO Marvels Avengers - Definitive Guide
I had missed the last minikit in the second part. I replayed just the second part to get the last one and it still didn't unlock. When I went back and played from start to finish with no skipping, that's when it unlocked for me.
Hope that helps anyone!
As with all Lego games, there are 10 Minikits in each stage but the majority of them can only be obtained during Free Play so don't bother searching for them during story mode. It seems the developers really mean complete the entire level. When I played the Captain Marvel DLC, I used the save/exit method to pick up a few missing Minikits and the trophy didn't pop. I then loaded and played the second part of the Captain Marvel DLC until the end; no trophy. Finally I played through the whole level again and this time the trophy popped. I am running under the assumption that the constraints are the same for all the DLCs.
As the DLC stages are fairly short, the Minikits are not particularly hidden and can be easily found without using the Minikit locator Red Brick. However, KnottyGaming has made a video guide should you wish to follow it:
Like each level in the main game, there are a total of 10 minikits in this level. They are not all available to you in Story mode, so you will have to complete this in Free Play. Once you have obtained them all, you must complete the level to unlock this achievement. You cannot Save & Exit the level as it will not count as complete. Refer to the video for the locations.
Characters required: Telekinetic Powers, Cosmic Powers, Electrical Panels, Laser/Heat Beam, Dig, Repair, Speed Walking, Break Glass, Technology Panels
Thanks to packattack04082 for the video: