Undead Hunter Challenges are a set of ambient challenges in Undead Nightmare. Completion of these challenges is neccessary in order to obtain the Legend of the Apocalypse outfit and 100% game completion in Undead Nightmare.
- Rank 3: Use a single explosion of a Retcher to kill 2 other Undead.
- Rank 5: Find and kill a Chupacabra.
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