When Christmas is over, Santa Claus doesn't simply leave like the Travelling Merchant does. No, of course, he has to explode into guts and gore.
During a part of the year, pumpkins suddely start to grow out of nothing.
Smelting metals doesn't need any form of fuel.
Furnaces and torches burn endlessly.
When a torch touches water, it doesn't go out, but instead pops off the wall or ground and lies around, and as soon as the water drains, it's suddenly burning again.
Skeleton Archers can fire their burning Arrows even if they're submerged in water.
Living Creatures other than the player don't drown.
If you phase out of the world for a moment and return, all items scattered on the ground are gone, all liquids have flown as far as possible and all enemies have disappeared, yet no time has passed.
Goblins, snowmen and Pirates can attack your world, but they won't do anything unless you're close to the center of the world island.
A harp that shoots flying notes that kill. Is the music really that bad?
It rains all the time - no problem. But a small cloud's rain is suddenly dangerous.
A 500 year old woman who always stays that age while not looking like an old lady.
Silt and slush can't be looked through by hand, but when stuffed into some kind of machine, they can contain perfectly valuable coins.