What is there to do at the Studio Ghibli Museum?

Question:

is it mostly just going around and looking at artsy creative stuff or are there games and rides too
is there a cafe and such?

Answer:

Ghibli M is not such an "interactive" museum. There are not games or rides there. You only see its exhibitions.

There is one movie theater where an original movie is played.

There is a restaurant to take a meal.