If you want to learn to create relatively simple online games using Javascript, then the HTML5 Game From Scratch Step By Step Learning JavaScript course is a great place to start.

The reimagined Google Snake arcade game allows you to explore and eat your way around the world through Google Maps.

But perhaps the most fun is that snake game, which can be played through the Google Doodle. Though it was launched on Wednesday, when the Lunar New Year began, it can still be played now.