How NVIDIA Nemotron Powers an Interactive Halloween Haunted House

What happened

A Hugging Face author built MonsterHouse, an interactive Halloween projection that listens to trick-or-treaters and replies as a grumpy pirate ship, softening when visitors say “please” or “thank you.” NVIDIA Nemotron Voice Agent coordinates speech recognition, dialogue, voice and animation on one workstation; Nemotron 3.5 Bolt E4B 4GB generates replies, shaped by a LoRA adapter trained on thousands of reviewed example conversations.

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The story so far

A Hugging Face author built MonsterHouse, an interactive Halloween projection that listens to trick-or-treaters and answers as a grumpy pirate ship, becoming friendlier when visitors say “please” or “thank you.” The system uses NVIDIA Nemotron Voice Agent to coordinate speech recognition, dialogue, voice and animation on a single workstation. Nemotron 3.5 Bolt E4B 4GB generates the replies, with its behavior shaped by a LoRA adapter trained on thousands of reviewed example conversations.