LEGO Marvels Avengers
65 Achievements
1,500
Meet The Masters of Evil
Complete the 'The Masters of Evil' level with all Minikits unlocked
20
How to unlock the Meet The Masters of Evil achievement in LEGO Marvels Avengers - Definitive Guide
also as someone else pointed out, you need to play from start to finish for the achivo to pop
If that doesn't work, try a hard reset and turning all the extras off(thanks to Apostle92627 for the update)
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: Dig, Pass through Grates, Telekinetic Powers, Electrical Panels, Mind Control, Super Strength, Break Glass, Grapple, Scan Vision, S.H.I.E.L.D. Panels, Laser/Heat Beam
Thanks to packattack04082 for the video:
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: