Yes for the entrance ticket and the costumes at least.

The entrance fee is just that. You get to see the shows and do the activities as taking ninja classes. It does not include food etc. at the show they give you a piece of paper that is used to wrap a coin in it and throw it on the stage.

4700 adult 2400 yen child

If you have a JR pass take the Tohoku Shinkansen to Utsunomiya change to Nikko Line. At the station as you exit go left there is a bus stop free to Edomura. 1st bus 10am 2nd bus 11:40am and last bus 13:25 hrs. thats 1:23pm to you civilians. I know no other way getting there except by taxi.

You can also go to a Seven Eleven and get cash from a teller machine too, very easy to do. You're going to need cash inside the village as most vendors do not accept CC's.

Its fairly small just plan your day. Get the important ones done. They have ninja school and samurai schools which I think are for kids. We cut our day short due to the rain but we still enjoyed ourselves greatly. I think it opens at 9am and closes at 5pm. So you have plenty of time. We took the free bus and got in at 10:30am and left at 3pm.

There are plenty of them.

I did not see any dogs there but I do not know if that was because they were banned.

All would have fun! It is targeted to all. It’s like a national heritage museum with activities, and no glitz, just Japan. Some shows are more for adults actually. It is truly a unique experience and I would go back without kids in a minute!