Ryu: The Ryu attacks are the arrow keys. Haduken is Y. Double punch is I. The high kick is O. The block is U. And the upper cut is P. Ken: Ken is wasd. The attacks are ZXC and the space bar. The block is Q.
This took me a long long time and I hope you apreciate it. Also this is only my first pretty good game so it might not be as good as you thought.