Cactus is probably the most useless plant ever. It's only use is to counter Balloon Zombies but Blover and Cattail do its job much better. Otherwise, it's just a more expensive Peashooter. Other contender is Gold Magnet since it requires Magnet-shroom, for one.

Mild violence makes it not suitable for kids under 6.\n\n Zombies for 6+, because it is easy to play. There is also mild violence in the game, so 6+ should be able to play it.