The aim of the game is to push your reactions to the limit. React quickly and click on buttons as they are highlighted: your total and average reaction times will be displayed once you've clicked thirty buttons in a row. Please post your scores in the comments!
I abandoned this project years ago, most likely due to a bug or lack of motivation, but decided to complete the project as much of the graphics and code had already been made. If anyone is interested, Sprite 15 contains a simple script to round numbers to three significant figures. It doesn't appear to work with extremely small numbers, but feel free to borrow it if it's suitable.