Alright, so I finished this crazy whacky game. I really liked the character puzzles, though I almost lost my mind on the maze puzzles

A few questions:
Bears - Are they killed with the crossbow? I've totally lost it somewhere in the game, checked the lost and found in and out of purgatory, the shop in the mine, and just by randomly walking around. I didn't think I'd need it, and being the packrat that I am, left it somewhere random to make space. I have no idea where I've dropped it and it's the only thing I can think of that will kill the bears (I know dynamite does, too, but it also ends up caving in the world).
The 'ghosts' in the dance hall - were they supposed to appear before finishing the game? They were telling me that Sawyer was dead before he was dead.
The horse and cows - were they supposed to go out right after Mammon spawned? I hadn't sent off the green aliens yet, that I can remember. In fact, I'm not sure how I did send them off even now =P
The Big Bad Wolf - I never solved this part, and I don't think I can get back there =( Am I wrong?