There is no "Half-Time Quiz Show" in this episode because Ruff sent all of his Fetchers to spend the night at the haunted mansion for an investigation, but they figure out Ruff's entire mystery on the next day.
The respective FETCHer costumes worn in this episode are a witch (Emmie), a vampire (Marc), a king (Jay), Frankenstein's monster (Marco), a 1950s girl (Rubye) and a cowgirl (Shreya). They wear them until the mansion's butler tells them to change clothes for dinner.