White Cat Mario

White Cat Mario is a white lucent version of Cat Mario that only appears in Super Mario 3D World + Bowser's Fury. It is the first power-up out of any Mario game that is not naturally in the game, being only available by using a specific amiibo. This will spawn a white variant of the Cat Bell which will transform Mario into White Cat Mario when touched. When Mario is in this form, he obtains all the same abilities as the normal Cat Mario form, along with a permanent invicibility. Although this form is really similar to White Tanooki Mario, both of these are available in Super Mario 3D World + Bowser's Fury; White Cat Mario not acting as a substitute of White Tanooki Mario.

The presence of these two forms is all the same logical considering that Mario can only transform himself into White Cat Mario if he uses an Invicibility Bell, which can be only accessed by scanning the Cat Mario amiibo. Therefore, with Mario not being able to transform into this modification of the cat form if he does not uses an external tool, it seems fair to keep along the White Tanooki Mario form, which can be accessed anytime if the player dies a certain amount of time.