These are tropes that originate in Japan and are found in Japanese Media. Before adding a page here, please ensure that it doesn't fall under a sub index. Also, please make sure that it actually originates in Japan, and that simply isn't the place you've run into it the most.
Related but not exclusive is Animeland, the theme park version of Japan as seen in media in general.
Anime Reality: Tropes that follow the Anime X naming convention.
Japanese Stock Phrases: Stock phrases from Japan.
Japanese Visual Arts Tropes: Visual style of drawn and rendered artwork from Japan. Most visual tropes from anime/manga will be here. Using these is the key to becoming Animesque.
Japanese Animation Tropes: subset of Visual Art tropes that requires being animated.
Stock Japanese Characters: Stock characters that have originated in Japan. Several (such as Ninja) have been adopted by the outside world.
Excited Title! Two-Part Episode Name!
One, Two, Three, Four, Go!