Well, that's a pretty smart game! Taking advantage of the human brain in recognizing faces :)) Do you know of "Chernoff faces"? :) And smart interpretation of the theme! The game is so simple, but is quite catchy!
I wish the progression was a bit more challenging - I felt like I would never lose, so I just quit after 24 catches. While speen and quantity increase - the time increases compensate too much. I'd recommend shortening it for a challenge :) At least after some levels