The beauty of the is its moddability. Because the game code is static, modders have built massive training tools and cosmetic overhauls that still run on the 1.02 engine.
If you already have an ISO from… elsewhere … and you’re not sure if it’s 1.02, open it in Dolphin → right-click → Properties → “Revision”. If it says 0 or 1 , it’s 1.00 or 1.01. 2 means 1.02. 1.02 ntsc ssbm .iso
The term "1.02 NTSC SSBM .iso" would specifically refer to an ISO image file of Super Smash Bros. Melee, version 1.02, encoded for the NTSC standard. This file type is essentially a complete image of the game as it would appear on a GameCube disc. The beauty of the is its moddability