Here is a list of cheat codes for the original version of Spyro the Dragon (game).
List of cheats[]
Crash Bandicoot: Warped Demo[]
At the title screen, hold L1 + L2 and press Triangle.
99 Lives[]
Go into the inventory then press Square(6), Circle, Up, Circle, Left, Circle, Right, Circle, Start
Level Select[]
Enter this code at the Inventory screen. After entering it, talk to the balloonist and he will take you to any of the 6 worlds without having to unlock them.
Square(2), Circle, Square, Left, Right, Left, Right, Circle, Up, Right, Down.
Artisans secret level[]
In the Artisans home world, hop on each of the stone platforms between the two waterfalls to unlock a secret flying challenge level. Sunny Flight.
Wizards Peak Secret Area[]
At the start of the level, there's a secret passage to Spyros left. It´s outside the castle and your have to visit the place twice to get all the gems.
Haunted Towers Secret Area[]
In Haunted Towers where you super charge through the doors supercharge through the second door on the right and turn left and jump. Now you should be heading towards a ramp charge up it then jump to the left (you may need to glide) now you should be in the secret area.
Tree Tops Isle[]
Check the video in this link: Tree Tops