Test your brain and reflexes. Different color balls of different sizes will appear randomly. Memorize all the balls before the time runs out. The balls will reappear but with an additional ball or balls. Click all the new balls before the time runs out. Make sure you pick the right balls!
Minimum Requirements:
Windows 2000/XP/Vista/7 Macintosh OS X 800 MHz processor 1 GB RAM Flash Player 128 MB video RAM