Ned, stay away from things with katanas until they've used guillotine blade, it also helps if you have a virgin (from the south desert) that damages all of them and, since they have low health, leaves them practically dead when your troops contact.
Nurse: When you've beaten it once you can get the "emporium preferred customer badge" for 30000 from the potions and misc section which lets you go there once per level.
 "Bloody Fun Day"){kind=icon}
 "Zilch"){kind=icon}
 "Feudalism II"){kind=icon}
 "Talesworth Arena: Death Watch"){kind=icon}
 "Monsters' Den: Book of Dread"){kind=icon}
 "Thing-Thing Arena 3"){kind=icon}
 "Crunchball 3000"){kind=icon}
 "Zening"){kind=icon}
 "Sacred Seasons MMORPG"){kind=icon}
 "Amorphous+"){kind=icon}