Unikitty - Season 2 Episode 5 -

When Puppycorn witnesses Unikitty do the most embarrassing thing ever, he vows he will never forget it. Desperate, Unikitty uses Dr. Fox's memory machine to erase Puppycorn's memory of the embarrassing event. In the process, Unikitty accidentally releases all of Puppycorn's memories. Now she and the gang must scramble to capture all the scampering memories, or Puppycorn will forget his life.