Editing Lode Runner (section)

===Timing===
Some of the game's puzzles in the advanced levels are time-sensitive. The player must dig in order to penetrate the interior of some cavern to collect gold, and quickly return the same way before the digging repairs itself, enclosing Lode Runner in that cavern with no means of escape.

Some puzzles require deliberate timing among the digging actions because Lode Runner must run over previously dug-out tiles that have just repaired themselves, while having enough time to pass through ones which have not yet repaired.