8. Plant combinations are important. Wall-Nuts and Chompers are great frontline defences with the Wall-Nut providing protection while the Chomper is vulnerable digesting the last Zombie it ate. But one of the best lethal combinations is the Star and the Pumpkin. The star just goes berserk shooting in all directions and having the Pumpkin there keeps it safe from hungry Zombies long enough for the Star to kill most of them.
9. Don’t be too precious about having specific plants to defend against Bungee Zombies; they may scare the hell out of you when they drop from the sky, but it’s easier to replace the plants they snatch than waste valuable plant choices on specific defence.
10. Plants that you may decide not to bother about too much are the triple shooters. Chances are you’ll lose a few plants along the way and you want plants that are quick to recharge and not too costly to replace. Other plants that are hard to justify in a selection are Garlic and Umbrella Leaf — it’s quicker to just replace lots plants with new ones. The Fume-shroom has spores that can pass through screen doors but really has limited use — Screen Door Zombie takes a little longer to take down but you can just hammer him with brute force (a Cherry Bomb or just a few Pea Shooters in a row will do the trick).
11. If you’re completely addicted and wondering if you’ll ever get your life back, the game does eventually come to an end, and the music video that plays along with the credits is actually pretty funny.
If you’re still on the early levels and finding the gameplay a little simplistic, bear with it: Things get much crazier and more difficult later on with swimming pools, darkness, fog and an all-out battle on a steep tiled roof.