Lore: Fanon encounters Gaster and becomes more determined to kill you.

Phase 1: Never slacked off before

Fanon broke the fight button before he gets killed and injects himself with DT, spinning a red bone and points at you.

Phase 2: blocked once more.

Fanon gets controlled by Gaster however the attacks are almost unavoidable.

Phase 3: 👎︎✡︎✋︎☠︎☝︎ ✋︎💧︎ ☝︎✌︎✡︎

After Phase 3, Sans gets hit. After that, he absorbs the 6 souls.

Phase 4: Burn in HELL!!!