bfirsh/jsnes — pull request #13 by jancborchardt (2012-09-24 13:15:35+00:00)
Title: map Y to B for international keyboard, fix #9

There are some countries such as Germany where the Z and Y keys are switched around: https://en.wikipedia.org/wiki/Keyboard_layout#QWERTZ

To not need to hold your hand in such a weird way, not only Z but also Y is mapped to B.