This topic discusses the differences between different platform versions (not looking at the obvious gameplay differences). This should also help clarify some (potential) differences in rules used for each category.

PC

• contains 17 levels with 10 treasures per level
• the "Peru" level unlocks automatically after "Aetherium" if you don´t buy the secret map for 2500$
• the ending credits roll either after "Peru" if you didn´t buy the secret map or after "Aetherium" if you did and completed "Peru" before that
• IQ system is irrelevant since it doesn´t affect anything

N64

• contains 17 levels with 10 tresures per level
• the "Peru" level unlocks when reaching at least 1500 IQ points after "Aetherium"
• IQ System: Each treasure gives 10 points with exception of the last level where you get 40 points per treasure. A maximum of 2000 IQ points is possible (160x10=1600 + 10x40=400).

GBC

• contains 15 levels with 10 treasures in most of the levels. "Teotihuacan" has 11 treasures and "Tian Shan River" and "Aetherium" don´t have any.
• has an extra level after "Babylon" called "Russian Border"
• the levels "Palawan Temple", "Jeep Trek" and "King Sol's Mines" don´t exist
• the "Peru" level unlocks when reaching at least 1900 IQ points after "Aetherium"
• IQ System: You get 50 points for level completion with a 50 point bonus if you find all treasures in the level. Each treasure gives additionally 5 points and trading health packs at the trade station gives 25 points each. In total you can earn the required 1900 points for the bonus stage by collecting all treasures in all levels where they are available or selling health packs if needed.

So this being said I can see the following differences for the categories:

1. "Full-game Any%(Glitchless)" on PC ends after 17 levels while on the N64 and GBC after 16 levels.
2. "All Treasures" category does not exist for the GBC ILs "Tian Shan River" and "Aetherium". "Full-game All Treasures" should still include all levels regardless of the game version.