I.N.D.E.S.T.R.U.C.T.I.B.L.E

I.N.D.E.S.T.R.U.C.T.I.B.L.E (I Ndestructible D Eadly Sadistic Traumatizing TeRror of Unbound Catastrophic SlaughTer WIth BrutaL InvulnErability) is a strong blimp. It is completely indestructible and CANNOT be destroyed by any means. Luckily, it only claims one single solitary life upon leakage. Its attacks don't usually harm towers but instead they annoy the player.

Abillities
Spawns a red bloon.
 * Code Red

I.N.D.E.S.T.R.U.C.T.I.B.L.E swaps the places of all towers onscreen with others. Cannot swap land-based towers with water-based towers or vice-versa.
 * Mix n' Match

I.N.D.E.S.T.R.U.C.T.I.B.L.E slows down to a speed half of a red bloon.
 * Speed Un-Burst

Makes all towers fire 5% faster only at him. As he is indestructible, it does nothing.
 * Fast Attacks

Makes all airborne towers fire 2% slower.
 * Acrophobia

Makes all water-based towers fire 2% slower.
 * Hydrophobia

Trivia

 * It does not appear in any of my games.
 * Pic coming soon.
 * It is made specially for the Conception Coloseum #2.