Time to completion: 5-10 minutes
[This game contains a large, unannounced picture of a certain animal - see image files included with the download]
Boogle riffs on Google default messages and online ads to create a creeping sense of dread. The eponymous search engine is an NPC in its own right, which directs your search results to serve its own purposes. It's a mood piece more than a game, really; the story is not particularly fleshed out, but the idea is so very creepy.
This game deserves a mention of multimedia, because it makes ingenious use of otherwise basic Twine functions to replicate familiar sights.