The US sub-prime crisis has now hit Japan in a big way. In the last 7 days Origami Bank has folded, Sumo Bank has gone belly up and Bonsai Bank has announced plans to cut some of its branches. Yesterday it was confirmed that Karaoke Bank was up for sale - and will likely go for a song. Today shares in Kamikaze Bank were suspended after they nose-dived. 500 staff at Karate Bank also got the chop. Analysts report that there's something fishy going on at Sushi Bank, and staff there feel that they are likely to get a raw deal.