The original deck is actually Ekay's deleted deck that shows FNF boyfriend as it's original. Popopipi remixed and hide all parts of FNF BF and replaced by small yellow creature. The reason why Ekay deleted his deck is because of concerning about the noises.

The first short that made me laugh ngl 🥹

Many yellow face looking things (yellow face is from bfdi)

Wubudubudubu is that true POSE TO THE FANS AYAYAYAYAYAYA

Rhythm Heaven

Also the sound that couldn’t be replaced is the yippe screaming sfx