Board Thread:Wiki Management/@comment-4009269-20140409213003/@comment-5792287-20140414090309

Super Citrons: Beat Far Future Day 12 using only Citrons to kill zombies (other plants are allowed, as long as they don't damage/kill any zombies). Difficulty: 9/10.

Spring Blovers: A tougher version of that Spring Bean + Blover challenge, beat Far Future Day 1 with only Spring Beans and Blovers. No sun production, stalling, or ANYTHING else other than the Springs and Blovers. Must be beaten without losing Lawnmowers too. Difficulty: 8/10.

Prime Power: Beat Far Future Day 8 without using any Plant Food (tested now, it is possible). Difficulty: 7/10.

I've tested all those challenges, and beaten them all. Super Citrons is tough because you need some major stalling tactics to hold up the early zombies while you get some sun production. Even once you start planting Citrons, the crowds that will have built up can be a big problem, and you need at least three Citrons to deal with Disco-trons (unless you E.M.Peach them).