Simile - Similes draw comparisons between two unrelated and dissimilar things, people, beings, places and concepts and marked by the use of words "like" or "as".
Flashback - It is a literary device wherein the author depicts the occurrence of specific events to the reader which have taken place before the present time the narration is following.
Hyperbole - Uses specific words or phrases that exaggerate and overemphasize a statement.