As the player progresses through the levels, they gain access to additional ball types, similar to the different bird types in Angry Birds. (adweek.com)
A kitten will delight in chasing a wand and bird type toy just as much as a cat will. (best-cat-art.com)
The Medusa heads are still there, but it is no where near a Flappy Birds type of game anymore. (droidgamers.com)