Really liked the character art. The characters won me over with the wall climbing. The fact your stuck the detective on his side is inventive, justified, and just works. The art in general is quite consistent, with the exception of the coins, which look like generic blobs of yellow, the green hazards, that look like stretched textures and the PFX cubes, which don't gel with the rest, in my opinion. But character animations are so expressive, all of this is forgivable.
The character controller is a little finicky. Air control is very abrupt as soon as any key is pressed, so you see the character stopping in the air or completely reversing his X direction. Somewhat difficult to control and leads to unnecessary deaths. Jumps are also odd to trigger. Sometimes i press the input key and they jump refuses to come out. Not sure what's going on there without seeing the code, but in a precision jumping platformer this would be one of the first things I'd look into.
I don't really see how the theme is hit. The game isn't a liar. The characters are.
The thing I had the least fun with, over time, was the level design. There are very few mechanics in the game, so as levels progress, I noticed repetition creep in. Felt to me like I was doing the same locomotion patterns over and over.
Overall a solid entry. Needs a lot of work to make into something great though, from my perspective.