Jak and Daxter: The Precursor Legacy is a platform game developed by Naughty Dog and published by Sony Computer Entertainment America and is the first video game in the Jak and Daxter series. It was released exclusively for the Sony PlayStation 2 on December 4, 2001 for America and for Europe and Japan in the same month. Jak and Daxter: The Precursor Legacy spawned two sequels, Jak II and Jak 3, two spinoffs, Jak X and Daxter and is the successor to the PlayStation series Crash Bandicoot. Jak and Daxter: The Precursor Legacy contains forms of energy known as "Eco", harvested and made available by the ancient Precursors. Eco is available for use by way of small pieces that give Jak a short spurt, or Eco vents which give him a fully-charged burst of Eco energy. Being a platformer, Jak and Daxter: The Precursor Legacy offers many collectables for the player to find throughout the game, including:

Power Cells - The main source of power allowing the player to advance to the next area in the game. They are small and circular, orbited by four outer spheres and a fifth smaller one, making them look something like an enlarged atom. Power cells are obtained by performing various tasks throughout the game. Comparable to the Jiggies from Banjo-Kazooie and the Stars from Super Mario 64

Precursor Orbs - Egg-like objects that are found floating slightly above the ground in unexplored areas. These are used as the currency throughout the world, allowing the player to purchase power cells during the course of the game.

Scout Flies - Small fly-like creatures trapped in red-and-silver boxes which are found in each area. Collecting the seven scout flies in each area yields a power cell.

Secrets

No Damage from Big Falls
When you fall from a high place, kick (Circle) shortly before you hit the ground and you won't take any damage from the fall.

Secret Ending
Get 100 or more power cells and finish the game to see a secret ending. If you get less than 100 power cells, you won't be able to see it.

Here's how it all began...it's the intro cutscene of a game that became a great saga, the proud offspring of the Crash Bandicoot series: