Below is a simple clone of the old arcade game Pac-Man implemented in JavaScript. To see the source code, or to make a comment, visit https://thiscouldbebetter.wordpress.com/2014/06/20/a-pac-man-clone-in-javascript/.
As usual, there’s a lot of room for improvement. The bad guys don’t actually have any artificial intelligence, they just pick a junction in the maze at random, go there, and repeat. The stupidity of the opponents somewhat makes up for the fact that the power-ups aren’t implemented, the escape tunnel is actually pair of long and dangerous dead-ends, and you have to traverse an entire segment of hallway in one go rather than being able to eat the dots from one side, turning around to avoid capture, and returning later for the others.