Four or eight player game. Requires two or four gamepads. Gamepad library courtesy of https://github.com/kallaspriit/HTML5-JavaScript-Gamepad-Controller-Library.
This is a demo app made with BIB:
https://chrome.google.com/webstore/detail/bib/clpbnigmledbhmjepnjjkbmaklgbhjhe
谷歌浏览器、其他Chromium内核的浏览器