Hidden Cavern

Your grey cave cruiser holds the right side of a banded red cavern that keeps flowing toward it, with dripping ceilings and crystal floors. Steer up and down to stay clear of the rock, the green cave globs that bounce about the cave, and the loose rock spikes that slide along the ceiling and the floor. The button fires a torpedo to the left, one at a time: a glob hit is worth 250 and the glob soon returns from the left, but a torpedo that reaches the far edge is a miss. You score a point for every stretch of cave you pass, and the cavern speeds up after 500 points and again after 2500. Touching rock, a glob or a spike loses a ship. Three ships lost or three misses end the game.

Controls: Use controller 1 or 2. Push the stick up and down to steer the cruiser; either button fires. On the title, up and down choose and a button selects.

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 Ahoy! No. 28, April 1986, page 57: original Commodore 64 program by James C. Hilty. This is a modern homebrew adaptation, not a commercial Coleco release.