The Kriken apparently have a large empire that covers much of the galaxy. Most of what is known about them is derived from what is revealed about Trace. Every member of the Kriken race, upon reaching a certian age, is exiled as a rite of passage. They are not accepted back into society until they have expanded the Kriken Empire, which undoubtedly contributes to the Empire's ruthless expansion.
- "Trace is a Kriken, one of the most hated and feared races in the galaxy." Metroid Prime Hunters Instruction Booklet, Pg 53
- "Scan indicates the exoskeleton of the hunter may not be as durable as it appears. This potential vulnerability may explain Trace's tactical preference for sniping." —Logbook (Metroid Prime Hunters)
- "Trace is a Kriken, one of the most hated and feared races in the galaxy. Every Kriken, when he reaches a certain age, is exiled by its clan for a rite of passage. Trace is currently in exile, traveling the galaxy looking for planets to expand the Kriken Empire." Metroid Prime Hunters for DS , Metroidhunters.com
- "Trace's alternate form, the Triskelion, is a sophisticated Kriken military biotechnology that allows Trace to biomorph into a three-legged war machine with a powerful lunge attack. It also features stealth cloaking enabling Trace to become invisible while immobile." —Logbook (Metroid Prime Hunters)