The user might not be aware that downloading pirated content can lead to legal consequences or computer viruses. They might also not know about the availability of Shin Chan movies through legal streaming services. So maybe my answer should guide them towards legal methods.

Another possibility is that the user wants to watch these movies on a portable device like a tablet or smartphone. In that case, using the streaming app on that device would be the best approach. They can download the content when connected to Wi-Fi for offline viewing.

Shin Chan, also known as "Crayon Shin-chan" in Japanese, is a popular animated series in Japan. The user probably wants to watch or download complete movies of this series in high definition, dubbed or subtitled in Spanish, and in a format that's easy to carry around, like MP4 or maybe even a portable device like a tablet or USB drive. The mention of "portable" might also refer to the convenience of carrying the files on a mobile device, such as a phone or a notebook.