Wow, amazing - you have just beaten the record of RantotheStairs which is more than 3 month old! Of course you are leading my high-score-table now! :-)
How long have you practiced to reach this incredible score?
onemorelevel.com. I like games with interesting/unique mechanics, especially ones I can play in under 30 minutes.
I also went for the deepest dungeon award. This one didn't start very well (exactly speed 200 at the end of level 2), but by level 24, I had 60 nitros stockpiled! Good thing too, I was using almost 10 per level just to finish in 6th!