Unlock all towers in at once.
With 8 different towers, you can experience unlimited mode faster and fiercer than anybody else.

[Included Towers]
Cannon - A spicy single assault tower that appears charming yet challenging
Scout - A tower that specializes in long-range assaults and emits an aura from a high altitude
Splash - The master of vigorous ranged attacks
Missile - It may be slow, but one strike from this can make even the biggest boss dizzy
Slow - Steady and slow, a monstrous tower that slows attackers down
Laser - A blast of light spreads along a straight path, knocking foes down
Focus - Concentrate your attack on just one target for a feast of nonstop attacks
Burn - This tower's fire cannot be extinguished easily