1.) Absolute hard deadlines. Robert Bunsen's 200th birthday only comes around once; if you miss it, you missed it, and the doodle gets canceled.
2.) Big responsibility. You're the gatekeeper to Google's front door; if you screw up, a billion or so people will know it fairly soon.
3.) Ambitious quality standards, also because it's Google's front door. Some of the doodles are as big as ordinary projects at Google.
And on the plus side, your work is up on perhaps the most visited page on the Internet, and you have something really cool to talk about at parties. Plus the doodle team itself is really fun to work with and you have a lot of artistic latitude. It's probably one of the more startup-like areas in Google.
