Lava Mario is one of Mario's Power-Ups. It's first ever appearance was pixelated, but now it has got a 3D design for Super Mario Universe: The end. His power is to throw lava balls (that stay in the game forever, until you die) and you can turn into a lava rock, so you turn into a yellow and orange rock that leaves behind lava, you can also throw lava at the same time
He wears a red t-shirt, a brown-ish colour over-alls and hat, red shoes and white gloves. The buttons on his overalls appear yellow.
In Super Mario Universe: The End, Lava Mario is the most powerful power-up of the Fire-sort.