they did that in the cartoon, he smashed into a room, a bunch of troopers came in and the jedi who were in the room (to protect palpatane) ran off leaveing him and a bunch of lowly troopers alone. all they did was let you hear the carnage as the jedi waited for the elivator. at first it was a mass of blaster fire and mechanical noise, but it soon got quieter and quieter, untill, in a mater of seconds, there was nothing but silence.
seriusly, with an ass stupid name like "Grievous" I realy didn't want to like this charicter, but he was just such a badass in the show, and he ****ing dies like a gadomed pansy in a roundup factory. fothermucker!