Underground Battle Pass is the fourth mission of Metal Slug: 1st Mission.
Mission Synopsis[]
The Hero traverses through an underground sewer avoiding the Rebels, piranhas, bats, and latching rats. If the player completed Mission 3 by the second hidden exit, the Hero enters this mission from a later point. The various lights surrounding the sewer's walls block the player's projectiles and dims the stage as the light dissipates.
Routes[]
Mission Entry
- Access the Hidden Routes of Mission 3 (Battle in the City).
- Incomplete Mission 9 (Discovery of a Secret Passage).
Mission Departure
- Mission Complete: Proceed to Mission 10 (Night Flight).
| Metal Slug: 1st Mission | |
| Heroes | Hero |
|---|---|
| NPCs | POW • PHANTOM Squad • Hilde Garn |
| Bosses | Rebel VTOL • Rebel Train • Macba • Rebel Zeppelin • Electromagnetic Crane • Rebel Carrier • Facility Elevator • Rebel Truck • Metal Strider |
| Items | Machine Gun • Rocket Launcher • Shotgun • Special Shot • Rank Medal • Coin • Ammo Crate • Bomb Crate • Gas Can • Food |
| Slugs | SV-000 • Slug Flyer |
| Missions | 0. Emergency Mobilization • 1. Hurry On • 2. Slicing Through the Jungle • 3. Battle in the City • 4. Underground Battle Pass • 5. Pursuit of the Transport Train • 6. Penetration of the Front Base • 7. Discovery of the Front Base • 8. Forced Escape • 9. Discovery of a Secret Passage • 10. Night Flight • 11. Fortress • 12. Weapons Dump • 13. Invasion in the Sea of Trees • 14. Weapons Port • 15. Breakthrough: With Prejudice • 16. Fierce Battle |
| Other | Prison Camp • Parachute Drop • Super Devil Mode |