Dark Eco - Jak and Daxter Collection Guide - IGN

With its ability to warp and mutate, Dark Eco is considered the most dangerous kind of Eco. Large amounts resemble a thick black ooze with a purple sheen;

Jak, Geo G. Wiki

Dark Jak's Instagram, Twitter & Facebook on IDCrawl

Walkthrough: Act 1 - Jak 3 Guide - IGN

Dark Jak - Jak and Daxter Wiki - Neoseeker

Jak and Daxter - Wikipedia

Jak and Daxter: The Precursor Legacy HD - Walkthrough Part 6 - Plant Boss Fight

Jak and Daxter Collection - IGN

Jak, Jak and Daxter Wiki

Jak and Daxter: The Precursor Legacy Guide - IGN

Dark eco, Jak and Daxter Wiki

Dark Eco - Jak and Daxter Collection Guide - IGN