I'm sure this has been posted across the net in various places, but I haven't seen it pop up here on this subreddit… Unless I'm just not searching for the right terms. Anyways, if you haven't noticed, the Japanese counterpart for the Zelda: Breath of the Wild webpages on Nintendo's site are much more interesting compared to the US/other region versions of the website. It has proper webpage audio, full browser window sized videos with gameplay that isn't public on Nintendo's channels/isn't in any trailer, and other interesting tidbits. Here are a couple of interesting things I found while digging around the page.
Movie.mp3 (Clean version of game theme, 2 min (accompanied run/live mp4 files) – www.nintendo.co.jp/zelda/sound/movie.mp3
Top.mp4 (On main page, 24 min day/night cycle) – www.nintendo.co.jp/zelda/movie/top.mp4
Weather.mp4 (5 min weather cycle) – www.nintendo.co.jp/zelda/movie/weather.mp4
Run.mp4 (General gameplay/cinematics, 2 min) – www.nintendo.co.jp/zelda/movie/run.mp4
Live.mp4 (More general gameplay footage, 2 min) – www.nintendo.co.jp/zelda/movie/live.mp4
BOTW Logo (PNG) – www.nintendo.co.jp/zelda/img/top_logo.png
I'm sure there's more interesting things to find in the page, but I mostly stopped when I found the game theme (as that was what I was mainly looking for).