Star Wars: The Force Unleashed II

In the first level, after you clear off the area with large red light barriers, you will encounter the "Carbonite War Droid." He is a large robot with a huge shield, and he sprays carbonite that will freeze you and other enemies. Once he freezes the troopers, destroy them with dash or Force Push. Though there won't be enough enemies to do that on when you first see meet this Droid, he will continue to appear in this level, and the second one, and then just a few times later in the game, so the opportunity window is abundant.

Alternatively, if you've completed the story and want a quick way to get this trophy, go to Challenge #10. In the first wave, remove the Shield from the droid, then run around him and let the troopers chase you. The droid will unleash the carbonite, freezing the enemies. Destroy the frozen enemies with Force Push or dash. However, there are only four enemies, so once you shatter them, save, restart and repeat the Challenge. Rinse and repeat 2-3 times until the trophy unlocks.