Atari made the majority of games for the Atari 7800 system. There are few variations if any for each game. Some variations are PAL only and are noted as such, others with the same label but have no other distinct characteristic will not be separated out. The black “P” sticker on the back of the cartridge can easily be peeled, which then the only way of determining whether or not a particular cartridge is NTSC or PAL is to test it. Only officially released games will be on this list, no prototypes or homebrews.