3Dミニゲーム3本：粘着ボール、カピバラ川下り、餃子のコンベア回避

Build three small browser games, each as its own self-contained HTML file with a 3D look. Game one: a sticky ball rolling through a toy city that picks up everything in its path and grows, shown from a chase camera with a score and size readout. Game two: an endless-runner river course where a capybara surfs downstream, steering left and right around logs and buoys, with rings to pass through, a final stretch with a checkered finish line and a placement screen with a replay button. Game three: a dumpling dodging obstacles on an endless conveyor belt in a dim kitchen-like hall with hanging lamps, speeding up over time. Use bright, readable colours, simple keyboard or touch steering, a restart option, and a distance or timer HUD. Done means each game starts, scores and ends cleanly.