If you're saying it's so bad, why is it a 7. I played through and got them, and as soon as I got the Blover it was almost outdated. Balloon zombies start appearing with the Blover, and you can either waste a spot with Plantern + Cactus, or you can save a spot with the Blover. Sure, it's more expensive, but the Blover doesn't have to be up front and getting attacked maybe for the fog to be cleared.