The code for The Legend of Zelda: A Link to the Past has been reverse-engineered, potentially opening the doors for many possibilities. Selling millions of units over the span of two decades and multiple systems, The Legend of Zelda: A Link to the Past is considered by many to be a masterpiece in the franchise.
Originally released in 1991 for the Super Nintendo, A Link to the Past caught the attention of many fans for its vast improvement over the previous NES titles. Adding small features such as the ability to walk diagonally, inventory optimization, and lots of secrets, the game has become one of the most successful games in the series' history—even spawning a sequel in A Link Between Worlds.
Programmer xander-haj has just reverse-engineered the code for The Legend of Zelda: A Link to the Past. The user explains the process in the about page of his GitHub wherein they cloned the code and re-implemented it—creating a playable game from start to finish. They stated that they achieved the process by utilizing user spannerism's Zelda 3 JP disassembly along with other ones that documented various variables and function names. Reverse engineering is a complicated technical process, but it helps open the way for possible unofficial ports to other systems with improved functionality—such as when a modder reverse-engineered the original Perfect Dark.
Using the code, xander-haj was able to create a PC port that adds convenient upgrades such as support for pixel shaders, enhanced aspect ratios, higher-quality world maps, and other quality-of-life features. While modifications such as these are legally frowned upon, they also help drum up interest in the game. Adding features creates excitement and refreshes older games such as when a Minecraft modder added new mob variants in that game. This means A Link to the Past may experience a revival in mass consciousness—especially with how much fanfare the game still received up to now.
Of course, the programmer may have to watch out for any legal issues—especially as Nintendo does not shy away from cease and desist orders. The legality of the port may cause public concerns. However, this also poses the discussion on how fans want to be able to play the more than 20-year-old classic in a system other than a SNES. Perhaps, Nintendo might want to consider updating the game for modern systems rather than just providing an official emulated experience via Nintendo Switch Online.
Source: xander-haj/GitHub