Prosopamnesia is a surprisingly clever piece of work that accepts only mouse gestures as input, although players will need to spend at least a couple of minutes experimenting with it before they can begin to comprehend what agj's Negative Capability entry is supposed to be about.

Note that you will need a constant internet connection for Prosopamnesia to work properly, as the application might break if it has problems retrieving the data it needs from Google. The discussion thread can be found here.