White Cat Mario

White Cat Mario (Japanese: しろネコマリオ Shiro Neko Mario) is an invincible form of Cat Mario, attained by grabbing an Invincibility Bell. It is based on White Tanooki Mario and White Raccoon Mario, granting all of Cat Mario's abilities alongside indefinite invincibility, until the user clears the course or is defeated.
All characters have a glowing, very slightly off-white base color, with their darker stripes and spots becoming light yellow accents. The circular detail inside the cat ears also turns light yellow, while the paw pads and the rest of the inner ears remain pink. Due to lacking darker fur patterns, White Cat Peach and White Cat Rosalina have completely white fur. Mario is the only character with a yellow cap brim and tail tip in this form; White Cat Luigi's brim is white, despite Cat Luigi's being the same shade as his spots.
The form first appears in both campaigns of Super Mario 3D World + Bowser's Fury for Nintendo Switch, having not been in the original Wii U version of Super Mario 3D World. As with Invincible Mario, Fury Bowser's goop is uniquely able to power White Cat Mario down without instantly defeating Mario in the process.