Bacterial Bloon

The Bacterial Bloon is a black bloon with a biohazard symbol on it. When it touches any bloon that's lower-ranked than itself (it's between a White Bloon and a Lead Bloon), that bloon will also becomes a Bacterial Bloon, but once a Bacterial Bloon is popped it can't become a Bacterial Bloon again even when "infected". When a Bacterial Bloon is popped, it'll spawn each of the lower-ranked bloons (Red, Blue, Green, Yellow, Pink, Black, White).