Jak and Daxter: The Precursor Legacy/Eco Types

There are at least 4 types of Eco in the game. Touching a piece of Blue, Red, or Yellow Eco will add it to your Eco Meter. The Eco Meter steadily drains after touching pieces of Eco and the effects of Eco are only for the last color touched (example: Grabbing a piece of Red Eco then a piece of Blue Eco will give you 2 pieces' worth of Blue Eco power. Grabbing 2 pieces of Blue Eco then a piece of Red Eco will give you 3 pieces' worth of Red Eco power)
 * Blue Eco - This appears naturally in several strategic locations on Misty Island. The effects of Blue Eco are as follows: Jak's movement speed is increased; nearby Orbs and green health crystals will glow blue then gravitate toward Jak; activation of the Blue Eco Device when nearby; and activation of the Blue Eco platform on contact in the Mist Pillar Area.
 * Red Eco - This appears in several places in the Misty Island demo: naturally in the Mist Pillar Area and Side Beach Area, in a wooden chest in the Mist Pillar Area, and dropped from Purple Lurkers and Skeleton Lurkers in the Arena Area ambush fight. The effect of Red Eco is to increase attack power. Under the influence of Red Eco, Jak can knock down a vertical bone bridge or kill a Skeleton Lurker with one punch.
 * Yellow Eco - This form of Eco is not in the Demo. From watching the preview video, it appears to be similar to the Red Eco but instead of increasing your attack's power it increases the range. When Jak punches, a ball of Yellow Eco power will shoot from his fist.
 * Dark Eco - This form of Eco is toxic. Contact with a box of Dark Eco will cause the box to explode and take 1 unit of health. Contact with the Dark Eco in the Dark Eco pool in the Arena Area will kill Jak.