Once upon a time, the legendary hero used a mirror to reflect Medusa's gaze back upon herself. Medusa was turned to stone, but her spirit lived on within. Now, she has regained her strength and even mightier powers. It is time for revenge; it is time to turn the world to stone.

TLDR: Medusa has a magical gaze that changes radius over time. When enemies are in the grey donut-shaped region, press Z to turn them to stone over time. Stoned enemies become your "towers" (like in a tower defense), which attack in a radius around them when you press X. Damaged enemies turn to stone more easily. Survive as long as possible.

Medusa has two abilities:
Z - Activate her gaze, turning enemies in stone over time. Her gaze is indicated by the grey circle with oscillating radius. Time this ability for maximum effect.
X - Activate the stoned enemies, causing them to unleash an attack. This can reduce the enemy's health and make them easier to stone. Medusa has a small attack as well.

When the power of the stone effect (gray bar) is more than the remaining health of enemies (green bar), the enemies turn to stone instantly from Medusa's gaze. This is indicated by a flashing gray bar.

Stoned enemies get in the way of living foes, blocking their path to Medusa. In addition, Medusa can use the stone "statues" to attack and weaken other enemies. However, if the path to Medusa is entirely blocked, several statues are destroyed by Zeus (after all, that would be too easy). Note: There are some pathfinding bugs.

Medusa uses her powers to activate her gaze, and cannot do so for lengthy periods of time (see gray bar at the top of the screen). When she runs out of health (green bar at the top of the screen), she dies and you must restart.

Defeat all the waves to win (when there are over 20 enemies on the screen at once, you are getting close). Beware, later enemies are more powerful.

Hint: You must accumulate an army of statues as best you can to survive the later waves.