User blog comment:Wikicool55/The Crazy Ways about Bloons/@comment-4275518-20120301205016

A flower bloon, where it has 5 petals, and each hit takes away a petal. When all the petals are off, it releases 2 pinks.

A titanium bloon, it takes three hits to crack it open (like a ceramic bloon) and releases 3 leads.