Dr. Zstein is an eccentric scientist hard at work studying the Z virus, a new strain that can turn anyone infected into a ferocious monster.

One day, an assistant Zzalgun who was accidentally exposed to the Z virus gained superpowers instead of turning into a monster!

"Under certain conditions, it seems one can be granted superpowers without the downsides of infection."
In response to this new discovery, Zstein begins his research into how to suppress the monsterfication and extract only the super power strains.

Yet, Researcher X, wanting to conquer the world with the Z virus, steals all the research data and antidotes before running away. In the process, the Z virus leaks out into the world, causing absolute mayhem in the lab...

Can Dr. Zstein and the Zzalgun, mankind's last hope, stop Researcher X and save the world from these mutations?

[Gameplay]

• Defend your tower against the evil forces!
  The monsters created by the head of the lab Researcher X are coming! Players must use their limited resources to create and strategically deploy new units. Construct solid lines of defense and fire your cannons to drive away the invaders one at a time and destroy the enemy's towers.

• Power up your super-simple manufacturing systems
  Gain coins by defeating your enemies. Use this gold to strengthen your main force or reinforce your turrets, all to overwhelm your enemies and claim victory.

• Featuring characters from Today's Meme!
  Characters from the popular emoji pack Today's Meme appear in the game! In addition to the familiar Zzalgun and Zzalyang, players can use dozens of other Today's Meme characters, each with their extraordinary skills, to defeat their enemies!