I just love the process. Coming up with the idea, reiterate it until I like the idea enough to start working on it and then every time I finish programming a feature and it works as I intended it to I feel great : )

Each game has it's own set of reasons why I want to make it.

Sometimes it's a feature of the language or engine like this game:

http://www.egdahl.com/html5/IrregularPool/

I wrote that one because I found an easy way to do physics and thought Pool with non round objects would be cool.

Cool lokin game imo, thats nice (thats why I like javascript)

though i am not sure if present game rules are too much perfect. could you say what is a way of hiding code in javascript games ? I know a little javascript+canvas but do not know how people hide code. This game source is long? Was it hard to write? Did you have some physics tutorial ? Could you say a little how this phisics is done?

I whipped that sucker out in like 5 hours! Including modeling the shapes in Blender! Hahahahaha!