Discovery of a Secret Passage is the ninth mission of Metal Slug: 1st Mission.
Mission Synopsis[]
The Hero hops on a SV-000 to traverse a cave system. The first half of the mission has a small shortcut that is accessed by destroying a wall and then jumping on two platforms that fall together.
Destruction of the SV-000 leads to Prison Camp. The camps at this point become more elaborate. The first part is crawling through tunnels and navigating inside a building, the second part is jumping on platforms over a large gap, and the final part is running through a roof with spikes popping out. If the Hero misses the jump to the final section, a hallway with Rebels is available below by hugging the wall.
Routing[]
Mission Entry[]
- Complete Mission 6 (Penetration of the Front Base).
Mission Departure[]
- Mission Complete: Proceed to Mission 10 (Night Flight).
- Prison Camp Complete: Retreat to Mission 4 (Underground Battle Pass).
Gallery[]
Mission: First half
Mission: Second half
Mission: Shortcut
Prison Camp: Tunnels
Prison Camp: Above the gap
Prison Camp: Spiked roof
| 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 |