I saw this flier on Twitter; it originated from Boss Battle Games arcade:



Since my schedule allowed for it, I took the opportunity to attend. I joined the competition (for fun, I didn't really think I had a chance of winning) and got to meet Daniel Pesina (who played Johnny Cage and all the male ninjas - Scorpion, Sub-Zero, etc.) and Phillip Ahn (who played Shang Tsung. Here's a quick video summary of my experience:

http://youtu.be/LIcDyAwc42g