Back from Japan last week, (Just Tokyo, long weekend for school) for sure not as busy as usual, those toy stores are usually full of loud hongers, but not this time, We did avoid buffet style lunch/dinner, my wife was a bit more panic than me, mostly stay in Ginza area, only went to Shinjuku for few hour in the afternoon.
Huge economic crushed for sure, but as a tourist, nice part is the Tax Free line up is so short...even the line up for most stores are short, but no big sale in Feb..
So, don't panic too much, stay healthy and happy!