December 05, 2025
How To Defeat Oscar in Black Ops 7 Zombies & Unlock the LGM-1 Wonder Weapon A complete step-by-step guide to dropping the Astra Malorum mini-boss and claiming the ultimate reward.
How To Kill Oscar in Black Ops 7 Zombies & Get the LGM-1 Wonder Weapon
Oscar might look goofy, but he is no joke in Black Ops 7 Zombies. When he spawns on Astra Malorum, he’s completely immune to all traditional damage — bullets, explosives, abilities… nothing touches him.
The good news? You can outrun him. Oscar doesn’t chase you endlessly like other mini-bosses; he simply patrols the map. If you give yourself a little space, you can focus on setting up one of the real ways to bring him down.
Below is everything you need to know to defeat Oscar and unlock the LGM-1 wonder weapon.
🔋 Step 1 — Break His Shield (Brain Rot Required)
Oscar is surrounded by floating drones. These drones are what generate his shield, making him immune.
Here’s how to deal with them:
- Equip Brain Rot ammo mod
- Focus fire on the drones first
- Once destroyed, Oscar becomes vulnerable to gunfire (though still tanky)
- Pick up one downed drone — you’ll need it for a later step
This opens up Oscar to real damage… but the fastest way to kill him is with traps.
🌞 Step 2 — The Sunlight Beam Trap (Pack-a-Punch Room)
The most efficient trap is located near the Pack-a-Punch machine.
What to do:
- Turn on power
- Shoot the hot steam valves in the room
- Use the telescope next to the organ to aim at the sun
- Lead Oscar onto the platform between the organ and Pack-a-Punch
- Activate the beam — instant kill
If you time this correctly, Oscar drops in one hit.
❄️ Step 3 — Freeze & Rocket Blast Method
You’ll need the Cryofreeze elemental ammo mod for this strategy.
Here’s the full process:
- Shoot Aetherium Crystals (purple crystals around the map)
- They will drop Absolute Zero Shards
- Collect three shards total
- Head to the museum area
- Interact with the model rocket
- Make sure Oscar is behind the rocket… and BOOM ❄️🚀
Another clean way to eliminate him.
⚡ Step 4 — The Complete Luminarium Overcharge Trap (Crafting Required)
To unlock the LGM-1 wonder weapon, you must complete all three Oscar elimination methods — and the final step requires crafting key components.
Here’s everything you need:
- Drone (from Step 1)
- Car Battery — find Ol' Tessie (the pickup truck near spawn) and shoot its hood with a Pack-a-Punched weapon
- Aberrant Wires — locate a blinking lamppost somewhere on the map and interact with it
Once you have all three items secured:
- Go to The Luminarium
- Activate the trap
- Lure Oscar inside
- Wait until he’s overcharged and melts
After completing all elimination methods, the LGM-1 wonder weapon unlocks. Enjoy the firepower 🧪⚙️
💣 Alternative Trap Kills (No Wonder Weapon Unlock)
If you just want Oscar out of the way…
- Pay-to-use traps still damage him
- The Apogee Annihilator outside the observatory launches missiles
- As long as Oscar is within range, he takes heavy damage
⚠️ These kills do not progress your LGM-1 unlock.
🎮 Final Thoughts
Oscar is designed to be intimidating — shielded, tanky, and disruptive. But once you know the mechanics behind his defenses and the map’s traps, he becomes far more manageable.
Work through all three elimination methods, gather the required parts, and you’ll walk away with the LGM-1 — one of the strongest wonder weapons in Black Ops 7 Zombies.
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