S.P.I.R.E.

The S.P.I.R.E. (Supreme Phantom of Implacable Rampaging Enmity) is an uncommon blimp encountered randomly after round 100. In between the size of a B.F.B. and Z.O.M.G., the S.P.I.R.E. is colored gray and black with multiple metal plates along the front and side. The blimp portion is rather blurry as though made of shadows, with occasional dark outbursts to the sides. Two engines are placed on the rear of the blimp and huge gray shield-like energy arcs jut out from each side.

Basic Statistics
First chances to appear occur on round 100. Edges of the screen will become shadowy if a S.P.I.R.E. is to appear in the next fifteen seconds.

Has ten thousand hit points.

Spawns independently of the path at a random angle directed towards a predetermined target tower.

Moves incredibly slowly. A S.P.I.R.E. will take around two minutes to cross a map horizontally.

Abilities
The S.P.I.R.E. does not have many abilities, but what it does have is extremely deadly to its designated target.

Choked by Darkness - Only used when the S.P.I.R.E. is directly over its target. Destroys the S.P.I.R.E. and deals its hit points, divided by one hundred, as damage to the targeted tower. Towers in a 50 pixel radius of the target are dealt the S.P.I.R.E.'s hit points divided by one thousand in damage.

Shadow Shield - Anything that hits the S.P.I.R.E. that is capable of dealing more than three hit points of damage at a time is reduced in damage until it does three hit points in damage and projectiles that hit will lose any piercing ability.