Credit to SubDrag of assemblergames forum for the quoted post.

Quote Originally Posted by SubDrag
The new version of GoldenEye:X is finally out (version 5a), turning GoldenEye into the Perfect Dark engine.

http://www.goldeneyevault.com/viewfile.php?id=202



A pretty exciting new version, including all weapons from GE, All Bonds, more multiplayer levels, assignments (challenges) using GE levels, bonus characters, Citadel remake, color changes, and more. As always, play it on your Everdrive 64 or 64drive, etc.