Yeah, while I agree with the parent about taking the time to disassemble a rom for larger projects, I feel he may be ignoring how low a barrier to entry it is to just modify some hex values and see them effect the rom you’re playing. It used to be a common first thing budding programmers did was write trainers for games, which often amounted to little more than changing a hex value from 0x03 to 0xff. Now you have 255 lives instead of the stock 3! Very heady stuff for someone in grade school, especially if those 3 lives cost a quarter in the arcade. There are a lot of people out there with little computer chops who would get a real thrill just replacing some of the sprites in their favorite game too.