Boss (Enemy)

The Boss enemy only appears every 100 waves, known as a "Super Boss Wave!". It takes full damage from everything except Air, and has health of ridiculous proportions. The player will lose 25 lives upon entry of the Base. One will need lots of firepower to bring down this enemy.

Appearance
It is a purple hexagon, with a lighter purple outline.

Strategy
This enemy is a hulk to fight. While it takes full effect from every tower (except Air), its absolutely gargantuan amount of health can make it seem like it is taking reduced damage instead. So, what can be done? Quantity over quality: invest in lots of hard hitting towers like Snipers or Missiles, then use Freezing and Blast towers to give you more time to damage this foe. Miniguns can help gradually shave down their health. Every other tower, while not as useful as those previously mentioned, can still contribute damage, since they deal full damage to the Boss. In the second game there are more bosses.

Trivia

 * In Infinitode 2, the design of the boss enemy from the first game was reused for the Fighter enemy and there are 5 new boss enemies added (Fighters split into 3 smaller Fighters on death).