Eggman's secret underground bunker

Eggman's secret underground bunker is a location that appears in the Sonic Boom television series. It is Dr. Eggman's all-purpose shelter for waiting out any apocalyptic event.

Description
Eggman's bunker is an enforced metal shelter located in the jungle on Seaside Island. It is designed to withstand anything, including zombie apocalypses, robot uprisings, extinction event asteroids, and misguided people handing out pamplets. Its only entrance being a small bast door, the bunker itself includes the basic necessities, such as light, tables, chairs, bunk beds and rations.

Past
The underground bunker was created by Dr. Eggman in case of an apocalyptic event. Despite it being a secret though, Cubot found out about the bunker and messed it up.

Season two
When an asteroid was on collision course with the earth, Eggman planned to ride out the impact in his bunker (after Orbot and Cubot cleaned it up). To earn a profit from this, Eggman offered spots in his bunker to the villagers which he sold to those he deemed most worthy. However, Eggman got trapped in the bunker after a fragment from the asteroid (which Team Sonic destroyed) blocked the exit.