Invincibility Mushroom

The Invincibility Mushroom is a mushroom item that appears in Captain Toad: Treasure Tracker.

If Captain Toad or Toadette lose a level often enough, a sprout will appear with an Invincibility Mushroom. Plucking it and collecting the mushroom will cause either Toad to glow, similar to a Super Star. However, the effect lasts until the end of the level, making it easier for them to deal with tough enemies, leaving any puzzles within the stage as the only remaining challenge(s). This item is very similar to the Invincibility Leaf item from Super Mario 3D Land, New Super Mario Bros. 2 and Super Mario 3D World.

An Invincibility Mushroom also appears in the Minion Quest mode of Mario & Luigi: Superstar Saga + Bowser's Minions. The Little Fungitown arcade proprietor bribes the Minions to fetch one from a cave in the mission Find the Invincibility Mushroom! However, since neither he nor Captain Goomba know what an Invincibility Mushroom looks like, the latter ends up picking a Poison Mushroom instead accidentally, which makes Mario succumb to Bean Fever later on.

Captain Toad: Treasure Tracker

 * Instruction manual: "If you lose five lives on one course, an Assist Pluck Patch will appear. If you need some help getting through a course, pull it up to find an Invincibility Mushroom. Grabbing it will make you invincible!"
 * "This doesn't apply to courses you've already completed or those with no enemies."

Names in other languages
Fungo Invincibile