KidzWorld writes: "So, Flock is mostly a puzzle game. You have to figure out how best to herd sheep and other animals past a bunch of obstacles and collect enough to beat the level. However, you are being timed, and you directly control your UFO as you try to herd the animals, so it also has an action element. In fact, if you're making your own levels in the game's level editor, you can make them even more action-oriented. I even made a pinball level where a rolling pig was the ball! If you like puzzle games, this one will make you think, and if you just like the idea of controlling an alien fleet (who doesn't?) then this should be pretty fun for you, too."