(Overheard from DC's computer desk) "Fuck! Why didn't we think of that?!"
Scraps everything. Starts anew.
There are about 19,500 images in this simple game. Several hundred of which needed reworked to 16:9 display ratio and almost all of them posed to match. Also --
In the end, most of the coding probably will have been rewritten from scratch - using the original code only as a reference for charting story progression, variable tracking, and calling images for display. All the while deciphering what the previous half dozen or so previous coders had patched together over the half dozen or so years.
So while you may think it's not that complex, the 970 MB of images and 26.2 MB of text files (about 300,000-400,000 lines of code or approximately 2 million words) for the coding is a vast amount of data to go through to make sure everything is reworked correctly. That takes time.