Introduction The original Nintendo Gameboy was released in 1989 and is one of the most recognisable game consoles from the 90s era. I’ve always wanted to write a game for it, but sadly this was a project that I kept postponing, mainly due to the associated complexity and dedication required when working with assembly code. This series of blog posts aim to serve as a collection of notes for myself, but I am also taking this opportunity to share my findings in the hope that they may be useful...