About eight block tall towers.
Add the chickens, but beware, the more you add the more cleaning you have to do.
Then they'll fall to the bottom.
The cats are the same. Although the cats will kill the chickens when the canons explode.
Put it in the canon.
They will slowly rise, and BOOM! There they are!
Same with the cats...
There they go!
Poor chickens! They need to get revenge over the cats!
Yes, yes I should.