This mode is a reference to Galo Sengen, a meme and a pun of Super Saiyans and the style of Gyaruo combined; it is also based on a music video of the same name. Press G to activate this mode. It cannot be deactivated until the game is reset or the day ends. Once pressed, Yandere-chan will have tanned skin, gold bracelets, sunglasses and Super Saiyan hair. The Galo Sengen music video, "Galo Sengen" by Policeman110Tube, will play the entire time. This music will eventually be replaced as to not be copyrighted.
Galo Mode is mostly cosmetic, but the player has a special ability in this mode. If the player presses the Left Control key, they will "power up" and charge their energy like a Super Saiyan. The player's reputation will be affected if any student sees Yandere-chan powering up, and it will be an automatic Game Over if a teacher or Senpai witnesses the player.
- If the player puts on gloves and then takes them off, Yandere-chan's skin will not be tanned.
- Galo Mode was implemented in the May 3rd, 2015 Build.
- Press D to disable the copyrighted music.
- The game's warning referred to this mode, saying that this game contained "fake tans". This warning was later removed because YandereDev said that it was "cringey".