Run binwalk -e filename.gif to automatically find and extract hidden files embedded in the GIF's binary data.
The first step is to analyze the container. You can use standard command-line tools to verify the file type and list its contents: File: Become_someone_v105_gif_version.zip ...
Use file Become_someone_v105_gif_version.zip to confirm it is a standard ZIP archive . Run binwalk -e filename