Lode Runner

Lode Runner is a 1983 platform game, first published by Brøderbund.
The player controls a stick figure who must collect all the gold in the level while avoiding robots trying to catch the player. The levels feature a multi-story brick platform motif, with ladders and hand-to-hand bars suspended in the air which offer multiple ways to travel throughout the level. The player can dig holes into floors and temporarily trap robots. The player may safely walk on top of a robot trapped in a hole. Over time, the so-called "turf" regenerates. If a hole is filled before a robot escapes, it is consumed and immediately respawns at a random place at the top of the level. The player's character can fall from an unlimited height without being injured, but cannot jump, so it is possible for the player to become trapped in a pit and thus for the player to have to abort the character's life (the game starts with five lives; each level passed earns an extra life). Certain parts of turf are trapdoors through which the player and robots will fall, and other parts are bedrock which cannot be dug through. The player finishes a level by collecting all the gold in the level and then traveling to the top of the screen.