The song's design includes several meta-horror elements that mimic the source game's chaotic nature:
: At certain points, you can hear references to other FNF mods, such as an "Expurgation" motif where Baldi’s jumpscare noise replaces a famous scream. A Collaborative Community Effort Expulsion - Baldis Basics In Funkin OST
The mod has gained significant attention not just for its difficulty, but for its authenticity. , the original creator of Baldi's Basics , even joined the mod team to provide the voice acting for Baldi, ensuring the character sounds exactly as fans expect. The song's design includes several meta-horror elements that
: Null’s sprite can actually appear over your notes, physically blocking your view of the upcoming inputs. : Null’s sprite can actually appear over your
: During parts featuring the character Null , the note lanes move to the center of the screen and wave up and down, making them harder to track.
Whether you're a rhythm game veteran or a horror enthusiast, "Expulsion" captures the exact moment where a simple math lesson turns into a desperate race for the exit.
: Flaming notes with rulers occasionally appear; hitting these triggers a "broken ruler" sound and drains roughly 25% of your health.