Flashback Light

The Flashback Light is an item featured in Danganronpa V3: Killing Harmony. Its exact origins are uncertain, but it is a device used by Team Danganronpa and The Mastermind of the Killing School Semester to implant false memories into its participants for the purpose of creating an exciting story for the Killing Game. Originally the Flashback Lights were presented as a tool for curing amnesia to goad the participants into using them.

Description
Flashback Lights, regardless of what memories they implant, always appear as a highly advanced flashlight with multiple computer components and wires attached to it.

When used on a participant, the world around them is described as "warping" or "twisting". While the Flashback Lights' primary purpose is to implant memories, they can also replace old memories, and memories replaced by the Flashback Light can never be returned.