In this example, the player is in for trouble!
Move 1: Go to the top of the ladder
Move 2: Encounter arrow
Move 3: Encounter arrow
Move 4: Move to bottom of stairs and encounter arrow.
In this example, the player needs to go hand-over-hand.
Moves 1-3: Climb hand over hand
Move 4: Go to top of stairs
Move 5: Go to bottom of stairs
Moves 6-9: Hang on to the Hangdogs.
Moves 10,11: Encounter the treasure
Move 12: Encounter the spider
All of the encounters hinted at above are situations in which the player may lose HP, gain gold, or be prevented from passing.
Ghosts haunt and do small damage, ropes can give the player rope burn, and treasure chests may be booby trapped.