Dr PC Jr FaceMaker NES Graphics Bug Fix

An originally very buggy rudimentary face-maker application for a discontinued bootleg console that I have fixed for more effective play on NES emulators. I will be creating further custom reskin modifications in the future, but wanted to start with restoring the software to its original intended look.

Backstory:

The Doctor PC Jr is a discontinued Famiclone-based computer system and ROM backup copier. Created by Bung Enterprises in Hong Kong, it was intended as an educational console for children, including its own proprietary versions of BASIC and LOGO language as well as several custom apps. The console wound up with a fanbase in the NES homebrew and hacking community in the early 00s, and bits of the proprietary software subsequently have been floating around on the internet ever since.

Because of proprietary differences in Dr PC Jr hardware from that of the standard NES, these bits of ripped software experience graphics and memory-mapping issues when run on standard NES emulation. I've created two variations of the software that should now run in any emulator you choose. In both I removed the non-functioning "EXIT" button and cleaned up redundant tiles.

The ROM that is going around, originally ripped in the early 00s by Chris Covell I believe, was set to MMC1 and loads graphics wrong in many emulators, writing over the background tiles. I've went in and remapped these elements to restore the look and functionality back to how it appeared on the original system. To do so I cleared out a bunch of redundant background tiles to make room for numbers and letters to display selections in hexadecimal. Most of the selections have more than 16 options. It isn't ideal, but it works.

Since then I have created a different version, remapping it to CNROM instead. This seems to resolve all the graphics issues it had before. Went ahead and cleaned up redundant and un-needed tiles in this one as well to make room for possible future graphics hacks as originally intended.