Zebbo is a type of 'pipe enemy' found mostly in Ridley's Lair. They have a very bee-like appearance. They are found in Metroid, Super Metroid, and Metroid: Zero Mission. In Super Metroid, the creatures can be witnessed not only coming out of Air Holes, but also out of several Samus Eaters; Zebbos infinitely spawn out of those two structures, suggesting they have hives built within them.