From the Super Mario Wiki, the Mario encyclopedia
Mini Munchelangelos are small versions of Munchelangelos encountered in Wario: Master of Disguise. They appear in the Smithsnorian Museum near the big Sphinx. Mini Munchelangelos attack just like their big versions and hide under the secret passage that the Sphinx is sitting on. Unlike most enemies, there is no in-game profile for Mini Munchelangelos.