These badges need to be modified. It is almost impossible to finish the game without losing a pig. Plus, last puzzle is available only if you finish the adventure. There should also be an impossible badge for "finish without losing a pig" whereas the hard one should be "finish adventure".
One of the best games I've played in Kongregate recently. Wish it was longer and more challenging. Thought it was a little bit easy. However, I enjoyed it a lot. Great concept.
I encountered an annoying bug. I got the heartstone trinket in the end. I saved the game, it was on my inventory. (unequipped.) Then I saved the game. When I loaded it, the item was gone and I couldn't do the quest again. So it was gone. No way I can beat the last boss..