Spiky Piranha Plant are large purple Piranha Plants that are covered in spikes. They normally cannot be jumped on. However, Mario can destroy them by jumping on them if he jumps on their heads after they slam their head to the ground. They appear in several galaxies in Super Mario Galaxy and Super Mario Galaxy 2. A Prickly Piranha in Super Mario Galaxy 2 has spikes on its head and can only be defeated by Whippets.