Overview
I saw that there’s no info or guide about this achievement so I decided to write about it.I hope to be usefull to someone.
How to unlock
You just have to play the Chapter 2, “Overdose”, with the mask Nigel (Bat).
A tip to use this mask without any difficulty is to reverse the movement buttons in the options menu so that when the mask reverse them you will play with usual input keys
IMPORTANT
Some players having problems trying to unlock this achievement. For what I found searching on the web, it is a common problem beacuse it is buggy. There are two theories on how you have to do it right to obtain Batman:
– play as I wrote earlier
– you have to use also the baseball bat weapon
There’s also another information to take in mind: the game scan for achievements after every kill. Here is what a guy on Internet said:
“I finishedusing Nigel with guns and no baseball bat and dont get the achievment. But I start again and use the bat at the first guy and the achievment apeared.”
Another usefull comment from the user [EX] -Wolfie-
This is actually a real acheivement, guys.
In overdose, try and knock the guy down with the door (Nigel) and see if the bat spawns.
When it does, pick it up and kill the guy with it. The acheivement should appear.
So you need some luck to obtain it.
I hope to be usefull for you all!