I enjoyed the simplicity of this game, and earning back seconds by catching flies was a nice little reward system in conjunction with the actual score going up. I do not feel like this was putting me in the perspective of a frog or any creature besides a person picking at flies. Simply adding a ribbit sound everytime a fly is eaten or a tongue sprite lashing out (even if it is not properly aimed at the fly that has been eaten) would really drive home that this game is about being a frog.