Silly Billy !!

gifted - bunnycat (slowed)

やんなっちゃう！ (feel empty!) - mimizu [slowed and reverb]

dizzy dizzy - balduin and wolfgang lohr (animation meme) sped up

ghost and pals - centipede (slowed and reverb)

イヤイヤヨ！(iyaiyayo) - MARETU [sped up+reverb]