Noise Changes largely depend on the Noise Gauge, and undergo some changes as the Noise Gauge reaches different levels. The player gains their first Noise Change after a certain point in the plot. After which, when they finish a battle with Giant viruses, they stand a chance to get a different Noise Change. If it is a new Noise Change that they have not used before, they will be able to see some of the new Noise's abilities before confirming if they wish to switch to the new Noise Change. Afterwards, a mail is sent to the player detailing all the Noise Change's abilities.