Hole Swallow City Arena Game Builder

Build a hole io style city swallow game in one HTML5 file with 3 chained Claude Code prompts. Stage 1: seeded city blocks, traffic, a tier table so only objects that fit get swallowed, area growth, next-tier hint. Stage 2: rival bot holes that flee, chase and feed, bigger holes eat smaller ones, 2-minute round, leaderboard, minimap. Stage 3: missions, daily city, validated city editor, juice, sound. Variables: city theme, art style, edible set, rivals, difficulty.