Injustice: Gods Among Us – The Caped Crusader Trophy / Achievement Guide
This can easily be done in a Versus Local Multiplayer Match. Select Batman and reassign your controller to choose another fighter. Then reassign your controller to port 1 again and start the fight. When pausing the game you can check out the move list. Look for the section that says “Special Moves”. You need to perform all 8 moves (including the super move) in one single match. You do not need to actually hit / damage your opponent with any of these attacks. Just performing them is enough.
Note: This trophy / achievement is likely to be glitched. If it is glitched for you then please delete all save games, all profile data, the install data and all patches.