1-Up Mushroom

1-Up Mushrooms are green mushrooms that give whoever eats one an extra life.

In Mario & Luigi: Superstar Saga, the 1-Up Mushroom revives Mario or Luigi after they run out of HP.

In the Paper Mario series, this little shroom is called Ultra Shroom. The revival shroom, Life Shroom, is pink with a heart icon. It revives Mario with 10HP when he dies (with a 1-up noise).