User blog comment:Someone456/Very special questions/@comment-5792287-20130111152046/@comment-5407503-20130111154326

For no.1. I can do this in Survival: Pool (Hard) if Balloons appear in 3-4 flags.

Plant 10 Ice-shrooms in first 3 flags, then wait the Balloon Zombie comes. I need to try this many times because Balloons are not usually appear in 3-4 flags. D: