Levels with extra objective(s)

The levels that have an extra objective/goal or more than one besides the Brain Buster objective and the regular objective "Defeat the zombies" or "Survive a massive attack". There are common objectives that the player can meet:

• Don't let the zombies trample the flowers.
• Never have more than X plants.
• Spend no more than X sun.
• Produce at least X sun.
• Don't lose more than X plants.
• Survive without planting on Dave's mold colonies.
• Defeat X zombies in Y seconds (only in Pirate Seas and Big Wave Beach).
• Survive without any lawn mowers.
• Survive the zombies with the given plants.
• Survive with most plants given for you.
• Don't spend any sun for X seconds.
• Plan your defense and defeat the zombies.