Thorn Shrooms are one of the three mushroom enemies in Papa Louie 2: When Burgers Attack!.
Thorn Shroom is colored deep blue (much like Dark Blue frosting in Cupcakeria) and white with scrambled patterns all over. It is larger than a blue shroom, and, in thought, attack the same way. It has spikes all over its head, hence the player can't step on them without taking its heart.
Thorn Shroom is a large, prickly Shroom that grows abundantly in the muggy marshes of the Saucelands. It has evolved a menacing cap of sharp, blue thorns to ward off any annoying creature from jumping on its head. Being firmly planted in BBQ sauce, Thorn Shroom prefers growing in large groups. This can be rather problematic for passers by, as a large briar of Thorn Shrooms can easily block an unkempt path.