Devils on the Doorstep (Insane)
Collaboration Stages · Super Metal Slug Defense · 1/1
Energy100
Clear XP3,000
Base HP400,000
Map length5,500
Max enemies8
Spawn interval0.03s
Enemy traits 
Traitless 
Floating
Traitless Floating Crown difficulty
All enemies ×100% magnification
No restrictions
All enemies ×150% magnification
No restrictions
All enemies ×200% magnification
No restrictions
All enemies ×200% magnification
- Special · Rare only
Boss
Spawn timeline
Scroll sideways to see more. For enemies with a base HP condition, drag the orange circle to set when they appear.
Enemies 8 types
| Enemy | Count | Mag. | HP | Attack | First | Respawn |
|---|---|---|---|---|---|---|
| From the start 6 types | ||||||
 DONALD MORDEN Boss | 1 | 100% | 450,000 | 11,500 | Start | — |
 MARS PEOPLE | 10 | 1000% | 1,250 | 500 | 10s | 4–10s |
| MARS PEOPLE | 10 | 1000% | 1,250 | 500 | 13.33s | 6–18s |
 MARCO | 3 | 1000% | 15,000 | 1,250 | 20s | 10–16.67s |
 ALLEN O'NEIL | 1 | 1500% | 90,000 | 9,000 | 40s | — |
 SV-001 | 1 | 1000% | 75,000 | 4,000 | 60s | — |
| SV-001 | 1 | 1000% | 75,000 | 4,000 | 66.67s | — |
 Ms. Sign | Unlimited | 100% | 10,000 | 1 | 900s | 900s |
| Once base HP ≤ 99% 6 types | ||||||
| MARCO | Unlimited | 1000% | 15,000 | 1,250 | Immediately | 26.67–53.33s |
| MARS PEOPLE | Unlimited | 1000% | 1,250 | 500 | Immediately | 16.67–33.33s |
 HUGE HERMIT | 3 | 600% | 360,000 | 6,666 | Immediately | 40s |
| SV-001 | Unlimited | 1000% | 75,000 | 4,000 | Immediately | 66.67–100s |
| ALLEN O'NEIL | 1 | 1500% | 90,000 | 9,000 | Immediately | — |
| MARCO | 6 3×2 | 1000% | 15,000 | 1,250 | Immediately | 0.07s |
| MARS PEOPLE | 3 | 1000% | 1,250 | 500 | Immediately | 0.07s |
 HI-DO Boss | 1 | 100% | 750,000 | 21,000 | Immediately | — |
HP and attack include the magnification.
Clear rewards
If the reward chances add up to more than 100, the rows are rolled in order and each later row shares what is left.
Score rewards
Earned when your battle score reaches that value.