Boss Pack 13 is the 13th main boss pack for slender fortress this is one of the boss packs that is selected when a new map is loaded.

Bosses (9 Bosses) (11 Total Bosses) Edit


Avogadro (Electric Man)

Cyborg Franklin

Frost Atronach


Russian Mangler

Spaceland Brute & Spaceland Clown


Thrasher & Zetsubou Spider

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