Foot print types sort of still exist. A few years back I was visiting with my ex-girlfriend her cousin's house. The toilet was an out house, that used wood planks to stand on over a pretty decent size hole. I thought, the boards were gonna gonna crack under my weight.
I'm pretty sure that these portable types are the exception but the porcelin types with no running water do exists. They have a plastic lid to cover the hole of darkness.
Funny thing is that most families have stories of so and so falling into one of these toilets or at least dropping one leg in pretty deep.
Recently though, most houses have progressed to the unhealtier European chair types.
Japan has come a long way since WWII and has certainly become King of the Throne so to say ... haha