Arcrawls

Arcrawls is an open-source, context-aware browser mascot and virtual pet that lives along the edges of your browser window. Arcrawls walks around your viewport, reacts directly to what you are doing online, and dynamically changes its expression, stats, and outfit depending on the site you are visiting, your active tasks, the time of day, and the season. It features over 140 unique animations, interactive toys, a virtual wardrobe, and custom schedule planners.