Bundle of bloons

This is a new "proporty" bloons can have.

teir 1
If you see a bundle of bloons with no glow, this is what you see. It counts as 1 entity, but lots of bloons. (eg: if there were 5 red bloons, it would take 5 hits to release 5 red bloons

teir 2
Like the before one, but 2x power. green glow.

teir 3
3x power as 1. Blue glow.

teir 4
Ditto. Orange glow

...and so on.