|First Appearance||Jak II|
|Latest Appearance||Jak and Daxter: The Lost Frontier|
|Series||Jak and Daxter|
Dark Jak was first seen near the beginning of Jak II. Due to Dark Eco experiments performed on Jak by Baron Praxis, he became able to channel Dark Eco. However, this also gave rise to Dark Jak, a dark version of Jak who appeared crazy and had a blood lust. Throughout the game, Dark Jak was given new powers by a Precursor Oracle.
Dark Jak served the same role as in the previous game where Jak could transform into him when channeling Dark Eco. He appeared before Damas and this convinced him that Jak would be useful to Spargus.
Jak and Daxter: The Lost FrontierEdit
Dark Jak didn't fully appear in Jak and Daxter: The Lost Frontier. Jak was about to transform into Dark Jak but was stopped by the Eco storms. All of the concentrated Eco in the air could have caused the transformation to kill him.