Not to be confused with Metal Slug 5's boss theme.
Fierce Battle is the sixteenth and final mission of Metal Slug: 1st Mission.
The Hero enters and infiltrates the main Rebel base. After a small room full of tanks and Rebels, the Hero fights the Facility Elevator, Macba, and the Rebel Truck in that order. Hilde Garn escapes the Rebel Truck, boards his Slug, and activates a self destruct timer. The timer given depends on the difficulty selected; if the timer runs out, then the player gets a Game Over. The final section is simply jumping on top of the Rebel Zeppelin to fight Hilde Garn.
|Facility Elevator: Hilde Garn enters the operations room and starts firing balls of fire at the Hero. In the meantime, crates slowly hover and attempt to drop over the Hero. When the crate breaks, Rebel soldiers, Rebel tanks, weapon extensions, or health items pop out.
Once the elevator breaks, Garn walks out and another crate (that is able to crush the Hero) is dropped to gain access to the next fight.
|Macba: He tosses knives that boomerang towards him and jumps around with his knives sticking out to avoid the player's attacks.|
|Rebel Truck: Hilde Garn enters the truck and slowly drives it towards the Hero. Garn also shoots projectiles coming from the top of the truck to stall the Hero's time.|
Game Clear Bonuses
Beating the game once unlocks the Heroine. An option called "S-Continue" is also available in the main menu which starts the game from the beginning with whatever Rank and health meter the player currently had when the game ended.
|Metal Slug: 1st Mission|
|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|