Overview
How to defeat Mr. Freeze in New Game+ Mode using Batman’s various gadgets and takedowns.
List of Gadgets and Takedowns
01. 00:18 Ledge Takedown
02. 00:42 Silent Takedown
03. 01:20 Remote Electrical Charge
04. 01:40 Explosive Gel Takedown (on wall)
05. 02:12 Disruptor
06. 02:40 Glass Ceiling Takedown
07. 03:03 Reverse Ledge Takedown
08. 03:31 Exposed Electrical Wires (wait till the current dies down or you will take damage)
09. 03:55 Grate Takedown
10. 04:18 Line Launcher Takedown (through glass)
There may be 1 or 2 more variations such as the Drop Attack, but these 10 actions should defeat Mr. Freeze.
Good luck and have fun!