Super mario bros. 2 the lost levels?

After Super Mario bros. was such a success, Nintendo released super mario bros. 2 in 1986 in japan. The American president of nintendo thought it was too hard, and it was never released in the USA. There was a game called Doki Doki panic and the sprites were changed to mario sprites. That is now the American version of Smb2. Is there any chance that you can find the japanese version of it online?|||It's on the Wii's virtual console.