User blog comment:PvZBeast234/P & P Level 16/@comment-5792287-20130819073923

I've replayed the level and played the challenge. It took me three tries, but I beat it, using Zombie Zapper Boost, not Lawnmower Boost.

Also, keep in mind that since I'm replaying the level, I don't have a backup lawnmower on either path like you do, so if I can beat it, I'm sure you can.