The levels 5-1 through 5-9 move you out of the back yard and up onto your roof. This is the last main stage and the one where you will eventually have to defeat Dr. Zomboss in order to beat the game. The roof levels are quite a bit different than anything you have ever faced before and you will have a whole host of new plants available to you. In the first levels you will get the Flower Pot, the Kernal-Pult, and the Cabbage Pult. The most important of these is the Flower Pot because unlike the lawn levels, you will need these in order to plant anything. The catapult weapons are necessary for these levels because the roof is at an incline so repeaters and other shooters don’t work well. Unlike repeaters, catapult weapons lob their attacks at the enemy so you can place them far from the front lines. A line of Kernal-Pults and Cabbage Pults are always good to have at the back of your line. In later levels you will get the Watermelon-Pult which causes heavy damage. These are absolutely necessary for the late roof top levels because some of the enemies can be quite strong. A row of Tall-Nuts reinforced with Pumpkins should be placed at the farthest point forward. Late in these levels you will encounter a lot of Buckethead, Football and Ladder Zombies. The most dangerous of these are the Ladder Zombies because they can bypass your first line of Tall-Nuts without a problem. In addition to this, their ladder will remain on the Tall-Nut allowing other zombies to cross over with ease. If this happens you can use a Jalapeno to destroy the ladder. What is more effective is using a row of Magnet Shrooms but you will need to also place a Coffee Bean on them otherwise they will be useless. The most devastating zombie on these levels is the Gargantuar Zombie. He is very tough and he carries with him an Imp Zombies that he hurls to the back rows of your plants. The best way to beat them is by first using the Cherry Bomb. This will get him to throw the Imp Zombie. Once he does then you can use your Jalapeno to finish destroying both of them. Once you have defeated him you will need to make sure that you replace your Tall-Nut for that row because it will be the first thing that the Gargantuar will crush. Another interesting enemy on these levels are the Bungee Zombies. Bungee Zombies attack from the air and they can deliver two types of attacks. They will either target and steal your plants or they will plant zombies behind the defense of your Tall-Nuts. The only way to effectively counter them is by using an Umbrella Leaf. A row of these can protect your most vital plants and stop the Bungee Zombies from attacking. You will also have an option to purchase Roof Cleaners from Crazy Dave for a tidy sum of $3,000. I would highly recommend this because like the lawn mower, these cleaners will provide an extra row of defense for you. Although there are many much more challenging zombies on the roof levels, you should have the weapons to take care of them. Good luck in defeating all of them!!!