todays is much much harder
http://www.google.com/doodles/slalom-canoe-2012
i managed to get 20.3 seconds.
the idea is the same, left and right arrow keys make you go faster, and your in a canoe going along a river with a few things in the way that you'll need to dodge, but the hard bit is that left arrow controls the left oar and the right controls the right oar. This shows you if one of your fingers is slightly faster than the other, since you'll end up going at an angle if your button mashing fingers aren't perfectly in sync with each others speed..... but even if they are, you need to turn now and again to dodge stuff, so you need to speed up the rate of one finger and well... it's hard.
On my first go i managed a time of 35.4, so shows how arkward it can be.