While we managed to get our ninja fix elsewhere, Ninja Trick House in Kabukicho sounds like it takes the whole experience up a notch. Love that they've got English-speaking guides (because learning to throw shurikens is complicated enough without a language barrier!) and actually let you take photos and videos - a lot of these places are super strict about cameras.
The location in Kabukicho is pretty perfect too - after playing ninja in the heart of Tokyo's entertainment district, you can step right back into modern Japan. It's one of those experiences that seems to hit the sweet spot between tourist fun and actual skill-learning.