Experiment 626

Bio
Experiment 626 was the experiment created by Test Tube in "Tri Your Best" which separated Yin-Yang into 2 different beings. After the challenge, an antidote was also made.

Experiment 626 was also used in "Waffling About" by Test Tube, who pours it in a plate of waffles she later feeds Nickel in order to split him into two beings. However, the antidote isn't used in this episode to revert the split.

Trivia

 * Experiment 626 is a reference to Stitch, Since he is also Experiment 626.