In history, film, television and other media, a flashback (also called analepsis) is an interjected scene that takes the narrative back in time from the current point the story has reached. Flashbacks are often used to recount events that happened prior to the story’s primary sequence of events or to fill in crucial backstory. In the opposite direction, a flashforward (or prolepsis) reveals events that will occur in the future. The technique is used to create suspense in a story, or develop a character. In literature, internal analepsis is a flashback to an earlier point in the narrative; external analepsis is a flashback to before the narrative started.

Flashback! is a steel boomerang roller coaster located at Six Flags Over Texas in Arlington, Texas (USA). The coaster consists of a single track that loops several times and then goes backwards, making it a shuttle coaster.

It was one of the first Boomerang coasters built in the United States. It was designed and built by Vekoma and opened at Six Flags Over Texas in the 1989 season. Vekoma then built a generic boomerang model that had been sold to numerous amusement parks in the United States including Knott's Berry Farm, Hersheypark, Lake Compounce, as well as virtually all the parks owned by Funtime and Premier Parks. The Funtime and Premier Parks were eventually sold to Six Flags in 1998.

While the coaster is exactly the same in all the parks it was installed at in the 1990's, the Flashback! at Six Flags Over Texas has a slightly different layout with somewhat larger and heavier trains. But the concept of this looping shuttle coaster influenced the more generic boomerang coaster located in so many parks today.