King Boom Boo

King Boom Boo is the boss of Pyramid Cave in Sonic Adventure 2. It is unknown what he was in life, but given his Boo minions appear in Desert Ruins in Sonic Lost World, he may have been a Zeti.

Counterparts

 * King Boo (Super Mario Bros)
 * General Traag (Teenage Mutant Ninja Turtles)