Construction Tower

The Construction Tower has been established as Eggman Nega's primary base of operations throughout the "Dimension" saga. From here, Nega has been able to spy on the events occurring in the alternate dimensions, subtly bending reality to his will using the Infernal Machine; however, rather than having to take constant trips to the underground, the tower's telescreen has allowed Nega to stay right where he is and watch events unfold in his own secret facility. In addition to the tower's many floors and unexplored areas, at least one laboratory (though a substandard one) has also been revealed, where robots and androids are able to be built and mass-produced. Specifically, Professor Membrane is at one point coerced into creating countless Shadow Androids for transport to another planet entirely, as well as other locations on Earth—wherever they are needed.

The tower has at least one docking bay, and (should the occasion arise) a lockdown procedure to prevent enemy infiltration, whereupon all entrances are sealed shut and all major operations within the tower are shut down. However, in the case of Eggman Nega & the Head Alien's hurried departure later on, the telescreen remains functional, for it is not fully clear to Nega whether the Infernal Machine can be salvaged, or if it had even been put out of commission at all. In any event, the lockdown procedure just barely fails to keep Professor Membrane from reentering the base after deceiving his former captors; quick thinking on his part allows him to slip inside at the last moment, and begin using the sole functioning unit in the tower for his own purposes.

(editing shall recommence soon)