Lode Runner is a puzzle video game, first published by Brøderbund in 1983. Arcade In 1984, Irem developed an arcade conversion of Lode Runner. It contained 24 remixed levels from the 150 original levels. Gameplay Basics The player controls a stick figure who must collect all the gold in a level while avoiding guards who try to catch the player. After collecting all the gold, the player must travel to the top of the screen to reach the next level. There are 150 levels in the game which progressively challenge players' problem-solving abilities or reaction times. Levels feature a multi-storey, brick platform motif, with ladders and suspended hand-to-hand bars that offer multiple ways to travel throughout. The player can dig holes into floors to temporarily trap guards and may safely walk atop trapped guards. Should a guard be carrying a bar of gold when he falls into a hole it will be left behind, and can be retrieved by the player. Over time, floors dug into will regenerate, filling in these holes. A trapped guard who cannot escape a hole before it fills is consumed, immediately respawning in a random location at the top of the level. Unlike guards, the player's character may not climb up out of a hole, and will be killed if it fills before he can escape by other means. Floors may also contain trapdoors, through which the player and guards will fall, and bedrock, through which the player cannot dig. Notably, the player can only dig a hole to the sides, and not directly underneath himself. This introduces an important strategy: when digging a hole X blocks high, the player must first dig a gap at least X wide to be able to dig through it, as the number of spaces will shrink with each layer, and the player needs at least one free adjacent space to be able to dig. However, exceptions to this rule arise when the player digs from the position of standing on a ladder, or hanging from a hand-to-hand bar, which allows the player to repeatedly dig and descend one row. This...