3D Grappling Hook Swing Game Builder

Claude Code builds a full 3D grappling hook swinging game in Three.js for any browser. A real pendulum rope with pumping, reeling and timed releases, zip pulls, wall runs, slides and double jumps, combo and style scoring, twelve courses in three zones with moving anchors and hazards, an endless mode, ghosts, medals, upgrades and saves. All models and sounds are code. A ?demo=1 mode plays a trailer run. Three variables set the world, hero and art style.