Not sure of what you are expecting :
for superpowers, apart Sentaï dramas (36 years so you have plenty of choices) and Kamen Riders dramas, I would suggest Yokai Ningen Bem, which was unexpectedly good. Also Kaibutsu-kun, but it's more for children (at least you can watch another part of Ohno's acting ). And of course GANTZ movies.
Some with supernatural aspects : Akumu-chan, Phoenix Wright Ace Attorney (movie)...
I would also suggest the Yuusha Yoshihiko dramas. Some kind of fantasy... I'm unable to describe them, but I totally adore that kind of humour.
Ah... all of them are Japanese ones!