Torture Bunny has an odd, gloomy feel. Music is, well, it is hard to describe. It is sort of an ethereal, out-of-tune jazz you might expect to hear when someone is trying to make fun of beatnik music. However you choose to describe the sound coming from your speaker, it works for the mood the game is trying for. The feeling carries through to other visual elements. The game has slightly disturbed sense of humor. You'll see comical contraptions like retractable boxing gloves, but also see oddball items like a box of raccoons. Each device looks fun - again, distancing the game from any sort of actual animal cruelty - and is big enough that you can manipulate and place them easily.
Probably the most disturbingly fun element is the option to replace the bunny's face with a photograph. How much fun you'll have with this option is up to personal preference, though I can already see a bunch of ex-boyfriends taking a tumble down the torturous shaft.