I remember when the Force Unleashed devs were making a big deal out of this. Then the Guerrilla Games emphasized their own version of this tech during Killzone 2's development.
That's one thing that annoyed me about Uncharted 3. When you shot people, they weren't phased at all until they suddenly dropped dead.
Edit:
The gif right above me reminds me a lot of Vanquish. Whenever your suit would start to overheat and your perception of reality would slow down. It made hitting enemies absurdly easy.







