Josiah Wormwood a.k.a. The Interrogator, a deathtrap expert, is hired to get Batman's cape and cowl.
- Animated Adaptation: This episode is actually an adaptation of the story "The Cape & Cowl Deathtrap!" in Detective Comics #450. Elliot S! Maggin wrote the story for both the original comic and this episode.
- Batman Gambit: Batman hired Wormwood to go after himself, just so he could get Wormwood to make an Engineered Public Confession.
- Bat Signal: Makes its debut here.
- Canon Foreigner: Josiah Wormwood. Although he's actually based off Jeremy Wormwood, the villain in the comic the story was based on.
- Cast as a Mask
- Chained to a Railway: Wormwood used a woman tied to the tracks as bait for Batman. The woman turns out to be a hologram. Wormwood laughs at Batman for thinking he would have really done it.
- Chair Reveal: A character playing the Baddie of the Week to get Batman's cape and cowl turns out to be... Batman.
- Cheap Costume: Upon finding himself in a death trap with no means of escape handy, Batman relents and throws off his mask, revealing... that he's wearing a black hankerchief tied over the top of his head with eye-slits cut into it. Which was actually nifty foreshadowing, Batman hired the villain under a different identity as part of a Batman Gambit. He had to lose his cowl to succeed in the plan and came prepared.
- Death Trap
- Engineered Public Confession
- Expy: Josiah Wormwood is essentially a prototype Riddler for the show — a deathtrap specialist who uses riddles in his crimes and has an obsession with knowing secrets and matching wits. A few episodes later, the legit Riddler made his debut.
- Multilayer Fašade: When Wormwood ultimately succeeds, Batman reveals a second mask underneath the cowl to protect his identity.
- Mythology Gag: Wormwood said that Batman "is only human after all", which is what one of the Joker's henchmen said in the Tim Burton film.
- Soft Glass: Like most times, Batman can send a grappling hook through a glass window like it was nothing. Then it was subverted this when Batman was unable to break a large light-bulb by just throwing his utility belt at it, and had to throw a pole at it like a spear. Then, two minutes later, he throws the belt at a glass wall, and it goes straight through it.
- The Unreveal: An in-universe example; Wormwood uses various deathtraps to force Batman to relinquish his cape and cowl. At last, Batman does so... only to reveal that he was wearing a smaller cowl under his main cowl. Wormwood didn't care; his client hired him to retrieve Batman's cape and cowl, not to reveal his secret identity. The client turned out to be Batman himself, who "hired" Wormwood in order to goad him into a confession for a previous crime.
- Wham Line: "I'm going... to wear them!"