Locations
In MegaMan X: Corrupted, almost all areas are connected through a contiguous world map, which is accessible from the Hunter Base after beginning the main game.
Intro Areas
These are the intro stages for X and Zero. These stages will not be accessible (at least in the same form) after being beaten.
Hunters Airship (X Intro Stage)
X's introductory stage is the Maverick Hunter's Airship, which has come under attack by a mysterious new foe named Strike.
Underground Facility (Zero's Intro Stage)
Zero's introductory stage is a mysterious underground lab. Awakening in this strange location after the events of MegaMan X5, Zero soon finds himself fighting his way out, though the exit is guarded by a foe who may be more familiar than Zero realizes.
TBD (Synthia's Intro Stage)
Synthia is not important and may or may not get an introductory stage. Oh well.
Island Regions
These are the neutral areas that connect to each of the main stages. Certain paths will be blocked off and require certain Mavericks to be defeated to progress.
Primary Stages
Each of these areas act as a traditional "stage," each with their own gimmicks, theme songs, minibosses, and Maverick. After reaching the beginning of each one, you will activate a Transfer Station that will allow fast travel between them and the Hunter Base.