Here is a rule for dealing with traps if you are doing Single Player: Once a figure moves on, adjacent, or diagonal to a trapped square in the same room or corridor, they must roll to see whether the trap is spotted. Spot Chance Roll: Roll 1 combat die. If you roll anything except a black shield, the trap is spotted and you have the chance to either jump over or disarm it. If a black shield is rolled, you failed to notice the trap and have triggered it, suffering damage. After the spot chance roll, proceed as usual (i.e., jump or disarm).
Has anyone else devised a way to simulate the surprise factor for single player?