"Underground Fortress" is the third mission of Metal Slug 7/XX.
Mission Synopsis[]
The heroes travel further inside the cavern to a heavily guarded exit tunnel that goes up and down. The entire trek is filled with turrets and cannons. Near the exit is an elevator that is needed to leave the cave, however the Crablops shows up again (this time split in two) to prevent exit.
In Metal Slug 7, the Slugnoid is found at the beginning, and the Slug Armor is inside of a Super Vehicle Crate at the boss arena. Metal Slug XX swaps the Slug's locations.
Locations[]
- Horizontal Tracks: The mines from the previous mission lead here. Various turrets are connected alongside pillars above the railways.
- Lift: The flatcar attaches itself to a lift and moves diagonally upwards; careful from falling at the left. Occasionally, the lift stops for the heroes to deal with turrets, droids, and descending Rebels. The Slug Armor swaps direction in this area. Whatever Slug was ridden is left aside right near the exit.
- Downward Tunnel: The heroes drop down a chasm by pulling the locked cranks while a hot, giant, iron ball is rolling right behind them.
- Cavern Exit: The final stretch of this cavern. The elevator section loops infinitely until Crablops is fully destroyed.
Prisoner Locations[]
There are 14 POWs in both games.
Metal Slug 7[]
Left: Enemy Chaser
Right: Point Item
Right: Point Item
Heavy Machine Gun
Point Item
Shoot above Clark's location once the lift reaches the end.
Point Item
Point Item
Grenade
Point Item
Ammo Crate
Individually fall down from the right.
Both: Point Items
Both: Point Items
Metal Slug XX[]
Heavy Machine Gun
Left: Enemy Chaser
Right: Parker
Right: Parker
Big Rocket Launcher
Heavy Machine Gun
Point Item
Point Item
Shoot spot above Leona once the lift fully stops.
Point Item
Point Item
Left: Thunder Shot
Right: Grenade
Right: Grenade
Shoot spot above the previous both POWs.
Point Item
Point Item
Ammo Crate
Individually fall from the right.
Both: Point Items
Both: Point Items