At the very end of the credits, we see Crank as if it was a retro video game. Chev shoots two henchmen, then he takes a needle containing drugs and goes into RAMPAGE mode and runs fast. He runs into another henchman who injects him with The Bejing Cocktail, the camera zooms in on Chev's heart which explodes and blood splatters on the screen. And the words Game Over appears on the screen.
The word "cunt" was not originally going to be shown. The line was written in the script, but the word's presence on Jason Statham's forehead was a last minute inclusion by editor Brian Berdan.