Actually, I had developed a theory that it's a custom for male rabbits of the Jazz Jackrabbit universe to cover their wrists rather than any other body part. I'm not going as far as to seriously consider the option that this is where their actual genitals are, but it appears to be a consistent behavior. Jazz does it at all times except for sleep, including both of his weddings, so does Spaz, the priest at their first wedding has his covered, all adult male wedding guests at the second wedding do, the abandoned enemy concept "mystery bunny" castle guard does, and Razz a ma Tazz has pretty much everything except for his glorious chest hair covered. Granted, the Jackrabbit brothers are the only ones who cover them with just the wristbands, which may simply be the skimpiest you can legally get in the Jazz Jackrabbit universe. Notably, Jazz's Superman costume is accurate except for the highlighted red wrists, which may be a reference to how the actual Superman's costume appears to have red underwear on top - wristbands are essentially the underwear of this universe. Then he proceeds to put on a Batman costume, also with highlighted wrists, and a Wonder Woman costume which originally involves wristbands anyway - although he also gets the color and probably material of that wrong.

The only male character in the Jazz Jackrabbit universe who doesn't cover his wrists is the bonus warp bunny; however, that's not the only thing that's wrong with that little guy. His business is shady at best. Notice that he's the only rabbit besides Eva willing to help the Jackrabbits on their quest throughout JJ2. And who are Jackrabbits during the main JJ2 single player campaign? Criminals, that's who they are. Jazz is a convict who escapes jail with the help of his brother, they unload several rounds from their blasters into the queen of the planet and break the ceiling with her head, and this whole time the coin bunny provides them with better weapons for their arsenal. And that's not all, the coin bunny is present everywhere Jazz goes, and remember the whole action happens in different times, on different planets. It's clearly the same person each time, with the same stand and the same neon sign; sure, the fur color changes but dyes are a thing, or it may be a matter of lighting. It's obvious the bonus warp bunny is not only a nudist, but also an illegal weapon dealer and a time traveler. And there are more strange aspects to his business: he trades for currency which is clearly fake. Come on, the coins have Jazz's face on them, who again, is currently a wanted criminal who shot the queen. Plus, collectively, in the official 1.23 episodes, if you play as Spaz, 62.5% of the secrets he offers you don't even need his services for - you can reach them with normal jumps or easy RF climbs. I theorize that perhaps in the pursuit of Devan, the Jackrabbits overlooked the real mastermind behind his entire scheme, traveling along them all the time and gaining the protagonists' trust: the anonymous, mysterious, bonus warp bunny. Who is also a nudist. Because no one suspects nudists of being evil. Or perhaps he's not even a real rabbit and isn't exactly aware of the customs.