Complete Data Wipe

Complete Data Wipe, or CDW for short, is an anomalous phenomenon that can happen in certain personalized copies in Super Mario 64 as a punishment of frequent cartridge tilting. However, in very rare cases, it can be triggered by another anomaly. As the name suggests, it wipes all save data present in the game.

Description
CDW will usually happen with little to no warning, and in rare cases where there is warning, it will commonly be minor lag spikes. The anomaly will normally occur when the game is shut off. However, in certain rare cases, the game will crash. It is theorized that after the wipe, the Personalisation A.I's memory is also completely wiped, due to most copies with this seemingly reverting back to base game.