Given the theme "Entire Game on One Screen" I immediately jumped to the idea of having the screen itself change as a mechanic. I started by essentially reproducing Pong as a proof of concept, and eventually settled on a win condition of trapping the "ball" in the upper-left corner of the screen.

It wasn't until the last day that I discovered that most browsers won't allow the width of a page to shrink below about 400 pixels. In order to get around this, you only need to shrink the game to 400x400 to win on any level in a browser. If you play the game by downloading the swf and using a standalone flash player instead, the required screen size changes depending on difficulty level, adding a bit more challenge.

I mostly used this as another opportunity to work in an environment I'd never used before, this time Haxe using OpenFL in FlashDevelop.