Orbit

Three chunks of space debris circle the Earth, two one way and one the other, each spiralling a little closer with every turn. Your defence ship circles the planet on a low orbit: steer it round and fire straight outward from the Earth. You get one shot for each turn the debris makes, shown by the SHOT lamp, so time it well. A hit destroys a chunk. Destroy all three to save the planet, and the next wave comes faster and spirals in more quickly, leaving fewer turns and fewer shots. If any chunk reaches your orbit it strikes the Earth and the game is over. Chunks score 100 times the wave number, and saving the planet is worth five times that.

Controls: Either controller. Stick left and right steer the ship anticlockwise and clockwise round the Earth; either side button fires (a fresh press for each shot). On the title, up and down choose and a button starts.

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. 47, November 1987, page 16: original Commodore 128 program by Cleveland M. Blakemore. This is a modern homebrew adaptation, not a commercial Coleco release.