PS2 (Last Gen) Version.
Played on Elite, where I have no ammo, or SC-20K gadgets. Elite is unlocked for completeting the game once on any difficulty.
Opportunity objectives also shown unless otherwise stated. I don't show the results of either choice for the Opposing Objectives though.
There are two versions of Double Agent, the Next Gen version (PS3/Xbox 360/PC) and the Last Gen version (PS2/Xbox/GCN/Wii) and the level designs, storylines, etc are almost entirely different. Even then the Last Gen versions have some slight level between themselves design differences but they're still roughly the same.
There is no rating for this version but I'm still trying to be as stealthily as I can in some spots. The PS2 version also has two bonus maps, Cargo Ship and Bunker which I show.

...also called Gateway to Glimmer if you're in the UK or PAL region of any sort
PS Store version because as some of you may (or at least hopefully know) I don't have the original disc...
100% walkthrough showing all gems, orbs and talismans and some skill points as well as Dragon Shores.
Note that unlike Spyro the Dragon, Year of the Dragon and A Hero's Tail I have only played through this once before this walkthrough was made so I don't know the game as well as the other Spyros.

Original disc, not the PS Store version or Greatest Hits version.
120% walk through showing all gems, dragon eggs, Super Bonus Round and some skill points
There are differences between the regular disc and Greatest Hits disc (regular discs are colored, others grey) which is only the music in some levels...