The Amazing World of Gumball (2011)

S6E20 The Potion

Gumball and Darwin discover a magical potion that allows them to shrink Hector down to a miniature size. Excited by their newfound power, they embark on a series of adventures with their tiny friend, exploring the world from a whole new perspective. However, their fun quickly turns chaotic as they realize that controlling a shrunken Hector comes with unexpected challenges. The duo must figure out how to reverse the potion's effects before things spiral out of control.