It is crucial to understand the differences between file types:
The Legend of Zelda: Echoes of Wisdom is not a spin-off or a gimmick. It is a mainline entry that redefines puzzle-solving in the franchise. The allows preservationists to keep this title safe, while the steady stream of updates (the "Upda..." in your search) ensures a smooth experience from start to credits. The Legend of Zelda Echoes of Wisdom -NSP--Upda...