These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Is Katherine an honest woman who just wants Vincent to finally take some control in his life? Or is she a Manipulative Bitch who’s perfectly willing to use a variant of The Baby Trap to try and get him to do what she wants?
Concerning Catherine: is she a malevolent entity who has willingly led several men to their deaths at the behest of Mutton? Or is she merely a Punch Clock Villain who has found someone she genuinely likes in Vincent?
Vincent, Johnny, and Orlando make it pretty clear that they don't want Toby dating Erica, but are they trying to protect Toby from sleeping with a transsexual? Or are they trying to protect Erica from becoming the victim of another hate crime?
A soundtrack composed by Shoji Meguro, consisting of smooth jazz for the quiet scenes and awesome classical remixes for the nightmare scenes.
Someone REALLY loves "The Planets".
Disappointing Last Level: The last few stages introduce Random Blocks and Monster Blocks, making the stages less about puzzle-platforming and more about undoing until that next Random Block turns into the block you need.
"Hilarious" might be an overstatement, but some scenes become amusing when looked back on with the knowledge that Catherine is a succubus, and Invisible to Normals:
When Katherine showed up with the cake while Catherine was over, she couldn't have seen Catherine anyway... and when Catherine went into the bathroom, she was probably just eavesdropping from there and waiting for the most inopportune time to flush the toilet.
When Catherine showed up at the Chrono Rabbit while Vincent was there with Katherine, she was probably just hanging out in the entryway, shouting things in Vincent's direction.
One-Scene Wonder: Nergal, Catherine's dad and ruler of the underworld, only shows up in the good and true endings of the cheater's route.
Periphery Demographic: Surprisingly, the game's multiplayer mode has become popular amongst competitive gamers, to the point where in some locales, there is a tournament scene for the game.
The Untwist: Catherine is a succubus. Who honestly didn't see that coming?
Why Would Anyone Take Him Back?: Justified! During the course of the main game, Katherine breaks up with Vincent for pretty justifiable reasons. So, since you can get a Katherine ending, there has to be a good reason why Katherine would ever take Vincent back...and lo and behold, it turns out Catherine was an illusion and Vincent never really cheated. Although it sounds like bullshit at first and Vincent's friends have to back him up for the explanation to stick.