Changes

Enemies in this category are Abyssal Land Bases/Installations, which have tremendous amount of HP and generally serve as bosses of various events, later maps (Isolated Island Princess for 6-4), or extra operations (Anchorage Princess for 4-5).

<onlyinclude>Abyssal "Land-Bases", often called "Installations" are a special kind of enemy that have unique combat behaviors. They are notably immune to torpedoes attacks, and especially weak against "Anti-Installation Equipment".

 

*See ''[[Anti-Installation]]'' for the full picture.</onlyinclude>

[[Category:Enemy Vessel]]

[[Category:Enemy Ships]]