Gameplay
Surprisingly enjoyable, once I restarted the game after scattering my first level fleas everywhere, it went pretty smoothly. The whip is a nice help, would be cool to have some indication that 800 is the goal and not the total number of fleas, initially I thought you had to get every single flea in the zone!
Graphics
Well for a game about fleas it's as good as it gets I guess, the professor's graphics could be better, maybe a more delimited flea herding zone but it's good.
Audio
That was fun to listen to :) only slight issue is the whip gives audio feedback in level 1, which led to me clicking around and not understanding why nothing was happening even if it made sound.
Innovation
Pretty much 5/5 here, I did not expect to enjoy a game about herding fleas and yet I did! Amazing.
Theme interpretation
Uhm.. Fleas and bounds? Oh, the fleas leap. My bad. *adjusts rating*