IGN got me into it, they posted a review about the game and it's frustrating level of difficulty.
So I figured I'd check it out since it's free and all. I immediately got hooked(I love difficult games like that, Super Crate Box, Super Meat Boy) and started telling my friends about it and posting on Facebook.
It spread like wildfire cause everyone was trying to top one another.
I just wish the leaderboards weren't still screwed up, so we could see who actually is the top at the game. I know not that many people scored 9,999 points.