Peggle Extreme Easter Egg - Headshot

After beating adventure mode, Go to quickplay, The level in the middle of the first row is the one you want.

The level's name is Headshot but if you notice the image the pegs spell BOOM. Which is a reference to Pure Pwnage's FPS doug and his trade mark BOOM HEADSHOT phrase. The level is also the only counterstrike themed level another reference to FPS doug because he yells this phrase while playing Counter-Strike