I don't remember seeing so much April Fool's activity from Japan in the past but I figure there might be more out there.

Google 日本語入力ピロピロバージョン (youtube.com)

Osaka minds the nationwide escalator gap and considers shifting left (japantimes.co.jp)

Google Panda (youtube.com): This one is bilingual even!

(For more amusement search this stuff on twitter!)

These are great! Especially the panda one.
I found a list of other April Fools' Day pranks:
http://www.fashionsnap.com/the-posts/201...ools-2015/

Thanks for the link, that's perfect!

The piro-piro input device looks awesome. It'll be funny if someone implements that as their thesis project just for trolling

Tactical Cardboard Box for all of your enemy base infiltration needs.