This is lesson 2 of a  multi-part lesson teaching ANYONE that can use a computer the fundamental information needed to hack arcade ROMS. These lessons will teach one at a time the individual skills needed to hack arcade ROMS and ultimately bring all these steps together to do some hacks such as adding a free play option. While we focus on 1980s arcade games, these same concepts can be used for console based systems such as Nintendo etc.

Lesson 2 is a lesson of understanding and converting from binary, to hex to decimal. This skill is REQUIRED in order to do any low level CPU work including ROM hacking.