Geemers are creatures that are evolutionary offshoots of Zoomers. Geemers are more resilient to attack, taking more shots or being immune altogether. They are always vulnerable to Missiles. Their appearance is similar to Zoomers, but red in color. They are sometimes shown with retractable spikes. In Metroid: Other M, they also have increased intelligence, following their target. Like Zoomers, they are also considered pests on Zebes.
A Geemer in Tallon Overworld
- "Wall-crawling mollusk with retractable spikes. The Geemer is an evolutionary offshoot of the Zoomer family. When threatened, it extends lethal spikes and retracts its head deep into its armored carapace." —Metroid Prime Logbook "Geemer" (Metroid Prime)
- "A small but dangerous creature that exposes sharp spikes on its back when threatened. This scavenger is known to forage through human refuse and is an infamous pest on Zebes." —Metroid Prime Hunters Logbook "Geemer" (Metroid Prime Hunters)
- "The spiked shell of a Geemer is rather durable and can only be destroyed by an explosive blast. While menacing in appearance, they are nonaggressive scavengers that feed on the waste of other creatures. This food source has led to them being spreaders of many types of diseases." —Metroid Prime 3: Corruption Logbook "Geemer" (Metroid Prime 3: Corruption)