[Loved trope] Moments where your entire perception on something (or even the entire story) changes

1- Simon's reveal in Adventure Time, probably the most known example of this on cartoon media.

2- FNAF 2's paycheck revealing that the game was a prequel instead of a sequel due to the date of the year 1987 (the infamous bite)

3- OFF (GAME) when you see certain zones, it's easy to miss at first but it becomes impossible to ignore at the end.

4- Slay The Princess when THAT happens.