Tennis Ball is one of the original contestants in Battle for Dream Island, the animated web series that began on YouTube in 2010 and later continued through Battle for BFDI and The Power of Two. Known as the show's inventor, he is usually logical and soft spoken, which makes an urgent warning from him stand out. Fans clip lines like this for object show edits and reaction videos, where a familiar character voice can deliver a joke or warning faster than any caption or narration could manage alone.