What do the ROM bracket variables in GBÂ ROM names mean? I just downloaded Aladdin for GBC nostalgia reasons (my first GBC game) and I have 9 versions to choose from. Listed are a few filenames. Aladdin (E) (M6) [C][!].gbc Aladdin (U) (Beta) .gb Aladdin (U) (Beta) [T+Spa].gb Aladdin (U) [C][!].gbc Aladdin (U) [T+Spa].gb Aladdin (U) [t2].gb Obviously the first variable is country, and Beta is a beta of the game. What is M6, and the [C]//[!]?