Blazing Shroobs are enemies found in Mario and Luigi: Partners in Time, inside Thwomp Mountain. They are a variation on the standard Shroob soldiers. Their most prominent feature is a blazing flame on their head. They attack by throwing fireballs at Mario and Luigi.
They also have the ability to summon a Shroob UFO, which will absorb some of the flames and blast them at the bros. with a cannon. If Mario or Luigi extinguish their flames, then the Blazing Shroob basically becomes a standard Shroob soldier, and they have the same attacks as well.