Does the Japanese have a special religion?

Question

What are the percentages of the believed religions in Japan?

Answer 1

Shinto ("the way of the gods") is the indigenous faith of the Japanese people and as old as Japan herself. It remains Japan's major religion besides Buddhism.

Shinto does not have a founder nor does it have sacred scriptures like the sutras or the bible. Propaganda and preaching are not common either, because Shinto is deeply rooted in the Japanese people and traditions.

"Shinto gods" are called kami. They are sacred spirits which take the form of things and concepts important to life, such as wind, rain, mountains, trees, rivers and fertility. Humans become kami after they die and are revered by their families as ancestral kami. The kami of extraordinary people are even enshrined at some shrines. The Sun Goddess Amaterasu is considered Shinto's most important kami.
In contrast to many monotheist religions, there are no absolutes in Shinto. There is no absolute right and wrong, and nobody is perfect. Shinto is an optimistic faith, as humans are thought to be fundamentally good, and evil is believed to be caused by evil spirits. Consequently, the purpose of most Shinto rituals is to keep away evil spirits by purification, prayers and offerings to the kami.
Observe both Shinto and Buddhist 84%, other 16% (including Christian 0.7%)

Answer 2

According to our good friends the CIA,

observe both Shinto and Buddhist 84%, other 16% (including Christian 0.7%)

Shinto is 'special' to Japan. Of course, Buddhism isn't.

Tenrikyo is also native to Japan.

Answer 3

the largest is Buddhist, coming up behind that is Christianity, but it is pretty far behind. I lived there for a few years, mostly it is Buddhism.