Too easy, definitely. Finished the game with 2 or 3 deaths, gold was useless since I could easily hire 2 fighters every fight I had to do; the last boss was killed with three actions and equipment was almost never changed through the whole game.
For the impossible badge theres plenty of guides on the net; for the hard one: 2nd campaign, team: warrior (str+end) and three rangers (dex); hail of arrows, execute, pin pin pin a lot, pierce and youre gone!
It seems that everyone managed to gain the impossible badge with any kind of party; I used a cleric on the frond side and three archers behind with 125+% accuracy :)
Great, astonishing game. Need though: level completion bar (how many enemies do I have to kill to finish it? :D) and challenges completion bar for every level; a little less lag too wouldn't hurt ;) 5 / 5.
 "Champions of chaos")
 "Rogue Soul 2")
 "Lucky Tower 2")
 "World's End Chapter 1")
 "Apokalyx")
 "MARDEK RPG: Chapter 3")
 "Vector Conflict: The Siege")
 "Command & Control")
 "The Legend of the Golden Robot")
 "Dragon Age: Journeys")
 "Monsters' Den: Book of Dread")
 "Monsters' Den")
 "Super Adventure Pals")
 "Dead Metal")
 "Versus Umbra")
 "Monsters' Den Chronicles"){kind=icon}
 "Demons Down Under")
 "i saw her across the world")