Digger

You dig tunnels through the earth under a hill, keeping on in the last direction you pushed, while three trolls dig after you. Boulders lie in the earth. Dig away the earth under one and, after a moment of rumbling, it drops until it lands on earth again or on the bottom. A falling boulder squashes any troll it meets for 10 points. Squash all three trolls to clear the screen for 100 points and start the next, where the trolls are a little faster. A troll that touches you, or a boulder that drops on you, ends the game. So does the last boulder reaching the bottom while trolls are left, since nothing can squash them any more. You can stop the digger, and pause. The high score is kept.

Controls: Use either controller. Push the stick up, down, left or right to set the digging direction; diagonals are ignored. The left button stops the digger and the right button pauses. A button starts from the title.

ColecoVision version credited in the source to Claude (an AI made by Anthropic) for Amy Studio, in Amy, the language by Amy Bienvenu, 2026: a reimagined adaptation of the published rules. From COMPUTE!'s Gazette, March 1985: original Commodore 64 program (no author named in the issue). Printed in machine language for both the Commodore 64 and VIC-20. This is a modern homebrew adaptation, not a commercial Coleco release.