Invasion is the second mission of Metal Slug: 2nd Mission. Only Gimlet has access to this stage.
Gimlet boards a Slug Flyer and flies over the Rebel forces. If the Slug Flyer is destroyed, then the mission immediately ends and is considered Incomplete.
|You crossed enemy lines! Now follow the info… and head for the rebel base.|
|Over and out. This is no drill. Good luck.|
- Mission Complete: Proceed to Mission 8 (War-Torn City).
- Mission Incomplete: Proceed to Mission 4 (Dangerous Decent)