Prompt one:

  imagine a game, like Galaxians but using tractor trailers,
  and as a first person shooter. Three.js in index.html

Result: https://gisthost.github.io/?771686585ef1c7299451d673543fbd5d

Prompt two:

  No, let's try it again with an army of bagpipers.

Result: https://gisthost.github.io/?60e18b32de6474fe192171bdef3e1d91

I'll be honest, the bagpiper 3D models were way better than I expected! That game's a bit too hard though, you have to run sideways pretty quickly to avoid being destroyed by incoming fire.

Here's the full transcript: https://gisthost.github.io/?73536b35206a1927f1df95b44f315d4c