Stats, bug fix, print statements

OK, this should actually be my final adjustment to stats. I also, fixed
one last bug, where the game didn't end if the players were killed by
the giant boss. And I added one additional print statement after the
giant boss fight to clarify user options. I have tested stuff pretty
thoroughly over the last couple hours, and I have not seen anymore bugs
or problems. So I think we should be in excellent shape.