Deep Sheep is a game 5 others and I developed in 48 hours for the Global Game Jam. You play as an alarm clock whose owner got stuck in a dream after counting sheep. The sheep want to keep the dream going by smothering the alarm clock. You have to roll around and ram into objects to knock the sheep off of you, and then roll back to the sleeping man before any sheep catch up and reattach. It plays a little like a reverse Katamari Damacy.
You can download the source/installer from the Global Game Jam page.