Spiny Hermits are enemies in Super Mario Galaxy 2. They are purple crustaceans or mollusks inside a spiked, cone-shaped shell. The shell has orange spikes. Spiked Hermits first appeared as uncommon enemies in the Starshine Beach Galaxy's underwater portion. They later appear as common obstacles in Boo Moon Galaxy's "Haunting the Howling Tower" mission. Here, they act more as obstacles than enemies (that means they're more like moving Jyks from Super Smash Bros. Brawl). Also like a Jyk, they cannot be defeated. Spiny Hermits' faces resemble that of Huckit Crabs from New Super Mario Bros. Wii.