What are the three unique forms of literature or drama created by Japanese?

It's difficult to narrow down Japanese literary and dramatic achievements to just three "unique" forms, as their cultural output is incredibly rich and diverse. However, here are three forms that are particularly noteworthy and have influenced both Japanese and global culture:

1. Noh Theatre: This highly stylized form of drama, developed in the 14th century, is renowned for its slow, deliberate pace, its focus on the spiritual and philosophical, and its use of masks, elaborate costumes, and music. Noh plays often feature themes of nature, the supernatural, and the transience of human life.

2. Kabuki Theatre: This popular form of theatre, also developed in the 17th century, is known for its vibrant, theatrical performances, elaborate costumes and makeup, and focus on storytelling. Kabuki plays often depict historical events, love stories, or tales of revenge, and are often accompanied by music, dance, and acrobatics.

3. Manga: This form of Japanese comics, which developed in the early 20th century, has become a global phenomenon. Manga is known for its diverse genres, from action and adventure to romance and comedy, and its unique visual style, which often features large eyes and expressive characters.

These three forms of literature and drama offer a glimpse into the depth and breadth of Japanese creativity, each contributing to the unique cultural identity of Japan. It's important to note that these are just three examples, and there are many other important forms of Japanese literature and drama, such as Haiku, Tanka, Bunraku puppet theatre, and Shingeki theatre, among others.