Jak and Daxter: The Precursor Legacy/Demo

After watching the Intro Movie, you will already be on Misty Island. Apparently in the real game, you start out on or near Lookout Island where there is a small village.

For purposes of the walkthrough, the guide separates the island into areas for clarity of item locations.

Demo Story (intro movie)
Jak and Daxter visit the local wiseman to see if they can find some information on how to turn Daxter back to normal. The wiseman says he has been watching the Lurkers trying to obtain the source of Dark Eco on the nearby Misty Island. He decides to send Jak and Daxter to Misty Island to stop the Lurkers.

Misty Island: Starting Beach Area

 * Quest Items: 10 Orbs
 * Hazards: The Fish
 * Orb Locations:
 * 3 in a vertical column above the teeter-totter (you need to double-jump from the top step or Handstand Dive on the teeter-totter to reach the top Orb)
 * 3 in a line on the bottom step
 * 4 in a line on the top step

Misty Island: Sculptor's Muse Area

 * Quest Items: 20 Orbs, 1 Scout Fly, 1 Power Cell
 * Hazards: The Fish, Purple Lurkers, Skeleton Lurkers, Mud Lurkers, The Fall
 * Orb Locations:
 * 4 on the smoothed bone stairway
 * 3 in a vertical column at the vertical bone bridge platform
 * 7 in a circle on the platform at the base of the short backbone bridge
 * 3 in a vertical column above the teeter-totter next to the platform at the top of the long backbone bridge
 * 3 in a line on a step near teeter-totter
 * Scout Fly Location: Platform at the top of the long backbone bridge
 * Power Cell Location: Regardless of where along the path you catch him, you're instantly transported to the platform at the top of the long backbone bridge after the Catch Cutscene.

Misty Island: Mist Pillar Area

 * Quest Items: 13 Orbs, 2 Scout Flies, 1 Power Cell
 * Hazards: The Mist, Purple Lurkers, Skeleton Lurkers, Mud Lurkers, Dark Eco Boxes
 * Orb Locations:
 * 3 in a line in the Scout Fly alcove
 * 3 in a line on the breakaway stones along the wall between the alcove and the Arena Area portal
 * 2 in a line on the breakaway stones on the platform next to the 2 Blue Eco pieces
 * 5 in an arc between the Red Eco platform and the Mud Lurker platform
 * Scout Fly Location: Alcove overlooking the Bay Area
 * Scout Fly Location: Platform along the wall between alcove and Arena Area portal.
 * Power Cell Location: On a pillar across from the Blue Eco platform

Misty Island: Arena Area

 * Quest Items: 19 Orbs, 1 Power Cell
 * Hazards: Purple Lurkers, Skeleton Lurkers, Lurker Cannon Charges, Dark Eco Pool
 * Orb locations:
 * 5 in a line at the top of the stairs that rise after fighting off the ambush
 * 2 in Metal Box 1 (Counting from left, Cannon's view)
 * 4 in Metal Box 2 (Counting from left, Cannon's view)
 * 3 in Metal Box 3 (Counting from left, Cannon's view)
 * 2 in Metal Box 4 (Counting from left, Cannon's view)
 * 3 in Metal Box 5 (Counting from left, Cannon's view)
 * Power Cell Location: Beside the Lurker Cannon after the second Purple Lurker is killed.
 * Power Cell Location: On bridge above the Dark Eco pool.

Misty Island: Side Beach Area

 * Quest Items: 36 Orbs, 1 Scout Fly
 * Hazards: The Fish, Purple Lurkers, Skeleton Lurkers, Mud Lurkers, Dark Eco Boxes
 * Orb Locations:
 * 3 in a line at the Arena Area portal
 * 3 in an arc from the Red Eco blob to the stone step in the mud
 * 4 in a vertical column above the teeter-totter
 * 4 in a line on the Scout Fly's platform
 * 3 in a line on the bottom step to the beach below the ribcage tunnel
 * 15 in the Blue Eco Device
 * 2 in a line on the bottom step near the Lurker Ship bridge
 * 2 in a line on the top step near the Lurker Ship bridge
 * Scout Fly Location: Alcove overlooking the Bay Area above teeter-totter.

Misty Island: Lurker Ship Area

 * Quest Items: 20 Orbs, 2 Scout Flies, 1 Power Cell
 * Hazards: The Fish, Purple Lurkers, Skeleton Lurkers, Mud Lurkers, Dark Eco Boxes, Barrels, Balloon Lurker Mines
 * Orb Locations:
 * 6 on the bow of the Lurker Ship
 * 4 on the top step near the Power Cell
 * 3 on the Arena Area bridge between side platforms 1 and 2
 * 4 on the Arena Area bridge side platform 3
 * 3 on the Arena Area bridge between side platform 3 and Arena Area balcony
 * Scout Fly Location: Raised area on the deck of the Lurker Ship.
 * Scout Fly Location: Side-platform 2 on the Arena Area bridge.
 * Power Cell Location: On top of the deckhouse on the Lurker Ship.

Misty Island: Bay Area

 * Quest Items: 32 Orbs, 1 Scout Fly, 2 Power Cells
 * Hazards: The Fish, Balloon Lurker Mines
 * Orb Locations:
 * 5 on the Zoomer stunt bridge ramp
 * 5 on the Zoomer stunt bridge platform near power cell
 * 5 on the Zoomer stunt bridge near Scout Fly
 * 4 in a line under Zoomer stunt bridge
 * 8 in a line at Lurker Ship hold doors
 * 5 in a line under skeleton tunnel
 * Scout Fly Location: At the end of the Zoomer stunt bridge.
 * Power Cell Location: Near the Zoomer stunt bridge.
 * Power Cell Location: After all of the Balloon Lurkers are killed, the cutscene shows the power cell appearing in the hold of the Lurker Ship.

i. Scout Flies (about 1.4% per Fly - 10% of Total)

 * 1) Sculptor's Muse Area: Platform at the top of the long backbone bridge.
 * 2) Mist Pillar Area: Alcove overlooking the Bay Area.
 * 3) Mist Pillar Area: Platform along the wall between alcove and Arena Area portal.
 * 4) Side Beach Area: Alcove overlooking the Bay Area above teeter-totter.
 * 5) Lurker Ship Area: Raised area on the deck of the Lurker Ship.
 * 6) Lurker Ship Area: Side-platform 2 on the Arena Area bridge.
 * 7) Bay Area: At the end of the Zoomer stunt bridge.

ii. Power Cells (about 10% per Cell - 80% of Total)

 * 1) "Catch The Sculptor's Muse" - {Sculptor's Muse Area} Regardless of where along the path you catch him, you're instantly transported to the platform at the top of the long backbone bridge after the Catch Cutscene.
 * 2) "Climb The Lurker's Ship" - (Lurker Ship Area) On top of the deckhouse on the Lurker Ship.
 * 3) "Stop The Cannon" - {Arena Area} Beside the Lurker Cannon after the second Purple Lurker is killed.
 * 4) "Return To The Dark Eco Pool" - {Arena Area} On bridge above the Dark Eco pool.
 * 5) "Find The Trans-Pad"/"Destroy The Balloon Lurkers" - {Bay Area} After all of the Balloon Lurkers are killed, the cutscene shows the power cell appearing in the hold of the Lurker Ship.
 * 6) "Use Zoomer To Reach Power Cell" - {Bay Area} Near the Zoomer stunt bridge.
 * 7) "Use Blue Eco To Reach Power Cell" - {Mist Pillar Area} On a pillar across from the Blue Eco platform.
 * 8) "Free 7 Scout Flies" - {Last Scout Fly's Area} After all of the Scout Flies are found, the cutscene shows the power cell appearing right next to the seventh Scout Fly's location.

FAQ
Here are some questions about the demo: Not in the Demo, only in the full game.
 * Can you use the boat in the Staring Beach Area?

A built-in timeout timer (probably geared toward store demo units) gives you a little over 15 minutes.
 * How long is the demo?

As of yet, no. If and when a GameShark code comes out (which I seriously doubt for just a demo with the full game coming so soon), I will include it.
 * Is there any way to stop the Demo's timeout timer?

His remark has no bearing on the Demo. From what I can tell from the Behind The Scenes video.. in the full game, there is a poor elf wearing a barrel who asks for 90 Orbs to "get back on his feet". He then promises the duo a power cell in exchange for this favor.
 * When I get around 90 Orbs, Daxter says something about getting a power cell. What is he talking about?

This is what I have found to be the easiest: Pay attention to the Muse's route. There are a couple places where he can be caught relatively easily. On the stairstep platforms at the top and bottom of the long backbone bridge, the Muse takes his time to hop on every step. By skipping steps or hopping down on him from above, you can catch him or get close enough to make a quick dash after him with the Punch button.
 * How can I catch the Sculptor's Muse?

In the demo, there are unlimited lives. However, there is still the timeout timer which limits the amount one can get done in one session.
 * How many lives do I get?

First, make sure you knock the vertical bone bridge to the Mist Pillar Area into place. Notice there is a piece of Blue Eco at both ends of the bridge and one piece of Blue Eco on a platform just below the Mist Pillar Area end of the bridge; you will need all three. Then clear the Skeleton Lurker and Mud Lurker from the path (the Purple Lurker is optional). Once the path is clear, start at the Sculptor's Muse Area end of the vertical bone bridge and collect all three Blue Eco pieces then make a beeline for the Blue Eco Platform. It will activate on contact if you have Blue Eco power remaining.
 * How do I activate the Blue Eco platform?

First, clear the area around the Device: there are 4 Purple Lurkers, 1 Skeleton Lurker, and 2 Mud Lurkers in the area we'll be working in. Then, go to the ribcage tunnel and follow it toward the beach.. there are two steps down to the beach where there's another Purple Lurker that aren't very visible at first glance. On both steps there are pieces of Blue Eco.. so grab both, run up to grab the third piece of Blue Eco by the vertical bone bridge, jump and spin across the mud puddle, then run for the Blue Eco Device. The top of the Blue Eco Device should raise before you make contact. 15 more Orbs are now yours.
 * How do I activate the Blue Eco Device?

Yes, it is definitely possible to get all 8 Power Cells within the time limit. Given that you need all 7 Scout Flies to get all 8 Power Cells, the completion percentage would be over 90% (how far over depends on how many Orbs Jak collected.. I've gotten 96.1% myself). As for 100%, it would be EXTREMELY difficult if it is possible, requiring the utmost efficiency in collecting Orbs and a very quick capture of the elusive Sculptor's Muse.
 * Is it possible to get all 8 Power Cells in the time limit? Is it possible to get 100% within the time limit?