The Seven Eyed Ghost is a limbless, seven eyed entity captured by the Ghostbusters shortly after Ralph.
A short time after Ralph was captured, the Ghostbusters had a new call and caught the Seven Eyed Ghost. They deposited it into the Containment Unit right after the Boogieman ingested Ralph. As the Seven Eyed Ghost looked around in confusion, the Boogieman spotted his next meal.
The Seven Eyed Ghost is cycloptic but lacks any limbs. There are six eyes on his torso.