User blog comment:Big plants fan/My new achievements 7./@comment-5565348-20121022214905

Hard Sun(Hard?): complete any given Day, Pool, or Roof level without planting any Sun-producing plants.

Spiky Times(Medium-Hard): Complete any normal daytime level only planting Spikeweeds and Sunflowers.

Staller(Medium): Keep any type of Zombie alive for 3 whole minutes in any level(It takes less than 3 minutes for even a Gargantuar/Trash Can to get to the Lawn Mower or the house)