This level is 5 of 5 of the Justice League Story Missions, and this is a unmissable achievement as it’s for natural story progression.
Level 20 - “You Kanto-uch This”
This level is very short compared to the main story levels and has no major confusing puzzles to tackle, you have to defeat and then level over.
Destroy Kanto’s 6 hearts using Batman as you need his
sense and utility bat. Then jump mash with
and jump over and dodge red lasers.
Rinse and repeat 2 more times, finally hitting with
to end the level.
As soon as the cinematics cut in pop achievement unlocked.
Congratulations
Happy Hunting