It's been a while, but here is my entry for this month's Experimental Gameplay Project competition.
You play a lifeguard on a very crowded beach. You just received news that a tsunami will reach your beach in 30 seconds but people are sleeping all around your area. You must run (WASD or arrows) to them, shout to wake them up (using your microphone) and get to the safe place on the left before the tsunami reaches you or anyone on the beach.
Note that the Mac version is *very* buggy (it's very difficult to change your sound settings without having a OS-related error) so you might not be able to enjoy the game (if you want to try, you might need to delete "settings.txt" before retrying... I will try to look for the cause of the bug as soon as I have some time. Linux users can get the Windows version and run from the directory "java -cp bin/jl1.0.1.jar:bin/ display.Base" to start the game.