I was messing around with the FiNCK Editor and got to the point where I shot random things out of cannons. Coins, buttons, birds, other cannons, ect. Then I got to blocks. I found an interesting effect caused by shooting the blackish brick tiles out of cannons. They are bouncy! Anything you put on them, including yourself, will bounce up and down on the tiles. But that's not it, if you hold down the jump key, you get super height from your bounces!
This makes for some interesting level desing.