My 2-year-old (3 in Feb.) daughter was playing this game with me today! It's the first time she's moved the mouse in a purposeful way, and intentionally controlled the pointer. She even learned to click the right (meaning left) button. She still doesn't understand which cubes to click, of course, but she loves it when she happens to hit some that blow up- she laughs every time. It's the first video game she's actually played, instead of just banging on the keyboard, mouse, joystick or whatever.
Thanks, Ray.