Yes. They do help to detect camo baloons. In bloons td 5, you have to buy them with monkey money.
October 26th 2009
Bloons TD 1 is so easy that you can win with only the basic tower.
Red Bloon Equivalent.
Use cheat engine 5.4
you can get bloons td4 and the first bloons td, but not 2 or 3 unfortunately. just go into the app store and search Bloons
The Game Already Came Out.
Battle BlocksBloons TD 4 (Expansion)Bloons TD 5Bloons TD BattlesBattle PanicSAS Zombie Assault 3SAS Zombie Assault TD
Level up by popping as many bloons as you can. Each level unlocks a new tower or upgrade.
It will come out in December 2011 around the 18th or the 25th