The banna-pult is a banana-like plant similar to other pults that shots bananas.
Unlike other pults, the bana-pult launches three- and not one- shots at once, each one for a lane. Each shot has a damage of 2, but, since it takes the double of the time of a normal 1 damage plant to shot, it's indiferent.
It costs 325 sun.
The bana-pult is a very useful plant in the roof levels (or any other level, if you complete the game and replay it).
It should, however, be well-protected, because it's still as fragile as normal plants.
Recharge time: Slow