Tundor Caverns

Fly through the caverns of Tundor and shoot the roving air mines, each worth 10 points times the level. Touching a wall or a mine costs a ship. You start with three ships and earn an extra one every 2,000 points. Each of the nine levels narrows the cavern and speeds up the scrolling, and when no ships are left the game is over.

The rules come from a disassembly of the original machine code: three ships, levels 1 to 9, a cavern gap of 13 rows less half the level, the original's mine timer and its scroll speed. The title tune is new.

Controls: either controller. The stick moves the ship in four directions, and the button fires.

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 faithful adaptation of the original program. From RUN magazine's November/December 1992 ReRUN disk: original Commodore 64 machine-language program by Tony Brantner. This is a modern homebrew adaptation, not a commercial Coleco release.