As others have already remarked, attacking seem to be broken in your online build. The downloadable WebGL Build meanwhile crashes on loading for me. Too bad, since the presentation is quite cute, and I would have liked to see how exactly you have implemented the theme.
EDIT: Quick addition: if I don't attack in the first round and just skip to the next phase, I end up not being able to move at all in the second one. Just a heads-up, if you are planning on continuing development on this gam post-jam. :)