Editing Lode Runner (section)

===Trapping and using guards===
In some levels, guards can be deliberately trapped in various ways. For instance, they can be lured into entering a part of the level from which there is no escape. In some situations, the player can liberate trapped guards by digging them out. In some levels, the player must exploit the guards by having them collect gold pieces which are positioned such that whoever collects them will become trapped. When the guard collects the piece and becomes trapped, the player can release the guard and then later steal the gold when the guard drops it or falls into a hole.

In some levels, there are gold pieces that can be collected only by killing guards by digging holes to trap them. Deceased guards come back to life from locations near the top of the screen, which may allow them to reach parts of the level that cannot be reached by the player.