For zombies that trigger a fast-zombie warning, it might be worth modifying the pitched entry alert (e.g. three very short beeps instead of the current medium-length one). If I'm waiting to place a plant to intercept one, I currently have to either cycle through the zombies or use the sonar on all the rows to find out where it's coming from.
For zombies that trigger a fast-zombie warning, it might be worth modifying the pitched entry alert (e.g. three very short beeps instead of the current medium-length one). If I'm waiting to place a plant to intercept one, I currently have to either cycle through the zombies or use the sonar on all the rows to find out where it's coming from.