Cute little game. Took me a little bit to figure out how to use the different fregs but once I did it was pretty fun. With more time it might have been nice to add some more in-game tutorial. Still a good game for 6 days of work.
Also I found out that after a while you can get enough range upgrades and build a big enough army of fregs to turn the game into an idle clicker. It took me a good few hours and over 400 levels but I managed to make my way up to 1 million flies! :D