One of its skills also teaches the clones new tactics, allowing them to evade incoming attacks. The incubator's durability is further increased as its latter skills are unlocked, providing it with a passive recovery and resistance against explosive and incendiary attacks, which is also passed down to its clones. Similarly to the original game, the incubator defends itself by continually churning out clones, this time modified clones of Marco Rossi and Fio Germi, both of which are stronger than their standalone counterparts. It is built by a miner and uses modified sprites like several other Metal Slug series bosses. The Clone Incubator appeared and made a proper name in Metal Slug Attack, first appearing as the Extra Ops unit for ' Task Force 10th'.

The Clone Incubator also serves as an exit for the Rugname as the host leads the players past the incubator's back. The final production line of clones will corrupt and turn them into zombies. Once the host is freed from the incubator, most, if not all of the clones will die off. The incubator churns out large numbers of clones of the subject being held inside, depending on who was abducted by the Martians, relying on the host in order to survive.

Created by the Martians, the Clone Incubator is a large mass of what appears to be organic matter partially enveloping a small pod filled with fluids and a subject of their choosing inside.

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