A Big Bubble (also called a Green Bubble or simply Bubble) is a hazardous object in Super Mario World.
Description[]
Big Bubbles are large, light-green, semi-transparent bubbles that slowly move around in the air.
In Super Mario World[]
Big Bubbles only appear in two Ghost House levels, Vanilla Ghost House and Valley Ghost House, where Big Bubbles often float onscreen randomly.
Just as with other obstacles, contact with a Big Bubble hurts Mario or Luigi. Big Bubbles cannot be destroyed and therefore have to be avoided instead. Mario or Luigi can also Spin Jump onto a Big Bubble without taking damage.