Ancient Sentry Towers are extremely powerful and dangerous enemies who appear at the end of Phoenotopia and Phoenotopia Awakening. They resemble statues from ancient history and were designed to keep intruders out of high-security areas. As such, they're only seen in the Ancient Crater and in a few secret areas. These enemies are almost entirely unapproachable; if Gale gets too close to one, it will zap her with lasers until she's out of its range, and it will also zap any projectiles she launches at it. The only way to destroy an Ancient Sentry Tower is to shine the Artifact's beam into the crystal at the top of the tower. The tower will explode, but it'll also send sparks along the ground that the player must jump over to avoid taking damage.