Controls are responsive and the art style is charming but that's about all the nice things to be said. The level design needs a large rework as basic issues stop it from being an enjoyable experience. Passageways above are blocked by invisible blocks leading to trial by error jumps when the current screen should just match the size of the entranceway. Enemies are crammed into small corridors where you're forced to take damage. Pathways opened by switches aren't distinguished by any markers leading to aimless backtracking till you see the pathway opened up. The sex scenes are the same generic button mash to not get fucked gimmick that hasn't been updated since the early 2000s that requires you taking damage and eventually dying(despite being a game that would obviously want you to see the sex making it bad game design). Lastly it's not a metroidvania if you show off nothing but a jump and an attack. The game has no mechanics to make it special or memorable and as such even as a demo is unremarkable.
Not trying to be an asshole, but this needs substance to be a real game. A central mechanic, a story, a character, or at the very least a fun gimmick to keep someone playing this over the hundreds of platformers that exist, and 16 bit titties are not enough.