Template:Species-infobox Lethal Slinkers are a rare variety of Slinkers appearing in ScareScraper mode in Luigi's Mansion 3, added in version 1.3.1. They are red and black, glowing Slinkers that do significantly more damage than their normal counterparts, in fact, almost twice as much as a normal slinker would do. They have 300 HP, more than double that of a regular Slinker. They are defeated the same way as normal Slinkers.
Lethal Goobs, a rare variety of Goobs, Lethal Hammers, a rare variety of Hammers, and Lethal Oozers, a rare variety of Oozers were also added in version 1.3.1.