Pack Juegos Nes Espanol Mega Link — 'link'

Retro gaming communities frequently compile "Mega Packs" or "Romsets" to preserve games that were never officially released in Spanish or to collect those that were. These packs often include: Official Releases

Algunos de los Juegos Incluidos:

• Super Mario Bros.: The Lost Levels (1986)
• Ice Hockey (1988)
• Tennis (1988)

• CDRomance (dot com): This site specializes in translated and Spanish-patched ROMs. Search for "NES" and filter by "Spanish language." They provide individual links, but users often share full packs in the comments.
• r/ROMs (Reddit): Check their Megathread (pinned post). It contains safe, verified "No-Intro" ROM sets. You will then need to download Spanish translation patches separately from ROMhacking.net.
• Internet Archive (archive.org): Search for "NES Spanish rom set" or "NES traducidos al español". Users upload full "packs" here with Mega links frequently.