If world 4 and world 5 existed their levels would be:
Deep Fried Ghetto City Yeah
Brainrot Factory
IFunny Watermark
Frosty Freezy Freeze
Sussy Imposter
World 5's levels
Mario
Five Nihts at Fnaf
Flame War
Wario
The Something-ing Towel of Piss
Shat in you're mouth.