Well, the characters are cute. And the game itself is mildly entertaining, I guess - the level design, while simple, was clever enough, and the trap mechanic is neat.
The hitbox seems a bit large, though, leading to you picking up items you didn't intend to and making the bonus levels a chore. And the torments really trivialize the soul mechanic for the entire rest of the game - as soon as you hit six hundred souls (which you probably will halfway through the game), solving a relatively simple puzzle will give you more souls than the entire main game - and the second torment will be enough to unlock all of the remaining cards. It feels like post-game content that should have been gated by actually finishing the game, rather than a soul count. Speaking of the soul mechanic, I kind of feel like we should have had the opportunity to collect "extra" souls on each floor, rather than the only variable being the wax bonus; it feels a bit weird that the primary source of souls is not being damaged, rather than the actual souls we're collecting.
The "teleport back to your candle" mechanic is either ridiculously overpowered or completely irrelevant depending on the level, though; paying a soul to sidestep a dangerous area or immediately heal is a trivial price to pay, especially when it usually lets you get a higher wax bonus. Personally, I'd suggest removing the mechanic entirely.
It's also slightly buggy - I had to redo the second boss twice when teleporting back to avoid poison clouds instead caused my character to become both immortal and stuck. Things like that didn't happen often (the bug second boss is the only one that caused any real problems), but it was somewhat irritating when it did.
Twenty dollars seems like a lot to ask for the game, though. Something in the range of five sounds more appropriate to me.
Am I being too critical?... It's not a bad game, it just... Feels unpolished. And short - I'm pretty sure I finished it in under an hour.
That itch page really seems to misrepresent the tone of the game, though... Did I miss some kind of joke or something?