Medusa Bloon

The Medusa Bloon spawns at the beginning of the path and is immune to attacks from towers at first. This is because, when it comes into a tower's range, it shoots a beam that turns the tower to stone. Towers that have turned to stone take 10 rounds to change back to normal. To avoid this, you must set up a mirror before it comes into the tower's range. This will cause its beam to bounce back at itself, turning it to stone. Once it has turned to stone, it does not move, and can be destroyed with explosives or lasers. If it escapes, you lose 30 lives.