xikhar/spiderbench ? reverse-engineered prompt

Build me a browser based 3D web swinging game that feels like Spider Man fan game. I want to be able to swing between buildings, wall run, perch, zip, and dive, with smooth movement and a fun third person camera.

Make the city feel alive, with a big Manhattan style island, streets, tall buildings, rooftops, parks, bridges, traffic, and pedestrians. It should look good in the browser, with lighting, shadows, bloom, reflections, and a few time of day options like daytime, night, and rain.

I also want simple on screen controls and a help screen so I can learn how to play. Please include a developer menu for testing and tweaking if possible. Keep it running in a modern browser, and make the whole thing feel polished and playable, not just a demo. If you need to check current docs or best practices online, go ahead and do that.