The original sound effects and voices are replaced with mismatched, distorted, or high-pitched "wrong" voices.

If you are writing a paper on this topic, it is helpful to understand the source material. is a narrative-driven animated series on YouTube where letters of the alphabet are personified characters. Alphabet Lore (Web Animation) - TV Tropes

Scenes from the original series played backward, often creating a "Benjamin Button" effect where adult letters transform into children.

Letters may transform into the "wrong" characters, such as X transforming into C or P into K. Overview of Alphabet Lore