As part of Blizzard's 20th anniversary celebration, founders Mike Morhaime, Frank Pearce and Allen Adham rang the closing bell at the NASDAQ stock exchange in New York on March 7. Pearce and Morhaime decided to take the opportunity to play some StarCraft II, with Pearce earning a narrow victory.

To keep the festivities going, the Blizzard founders then projected a seven-story-high video featuring cinematics from World of Warcraft: Cataclysm and StarCraft II: Wings of Liberty on the NASDAQ tower for a full hour.

Keep an eye on Blizzard's 20th anniversary site throughout the year for videos, interviews, photos and more. Also, don't forget to enter their anniversary video contest by April 19 for a chance to win an expenses-paid trip to BlizzCon.