Well, minibash does not include multiplayer. but we can challenge others via forums.

Just go to menu and select "create chalenge", when you are done, save it and share. Create your own fighting moves and share them whit people.

There is an example (When you save, be sure that you copied the link that will appear below of the game when you save the challenge.)

My challenge: http://forum.toribash.com/minibash.php?challengeid=1006