Nostalgia Emulation System is a resource pack that was made for the 16x NES Challenge 2.5 Contest, which involved only using 3 colours from the per 16×16 pixel area.
It is by no means complete. Most major blocks are done, but only a few items are. There are also a few paintings and mobs.
How to install Nostalgia Emulation System Resource Pack:
- Download the resource pack.
- Open Minecraft, and go to Options->Resource Packs->Open Resource Packs Folder.
- Drag the zip file you downloaded into that folder.
- Select the pack, and you’re done!