I have a Google Play project where the APK size was over 100MB. I had to take the video content out of the APK and put into a split OBB file to get under the size limit. The OBB file wraps a couple MP4 video files and I zipped with 7-zip as a ZIP with STORAGE compression. To play the video, I used a VideoView with the [CustomAPEZProvider] to play video directly from the downloaded OBB file.