This improv game is in the following improv game categories:
Play tag, but in slow motion. Immensely
entertaining if played well;
players are not to escape the tagger by making a sudden movement, and the
tagger cannot lash out to tag another player. Tell players to breathe,
scream and groan in slow motion.
You may want to have the players exercise walking in slow motion first, to
make sure they are aware of how they (naturally) move, and learn how to stick with that in slow motion.