Doopliss vs the world

Production/Aesthetics
Good first impression, very clean looking startup and fancy menu.
For consistency, starting in non-full screen would probably be better. Also, F4 is typically the fullscreen button and is not used, wouldn't be bad to have that work as well.
Death effect is kind of obnoxious, you put a lot of effort into setting up atmosphere with lighting, background effects and all that but then when the player dies and there's an akward shock effect and totally out of place death music (a concept few people really enjoy).
Engine definitely feels different if thats a concern, for an adventurey game it probably won't be. This didn't feel like a problem at all during the playthrough with the exception of the platforms. The ghost jumping on platforms especially felt unreliable too.
Lots of nice production touches - parallax backgrounds, moving footstep sounds etc.
Dialog popups feel smooth to run/skip through as needed and look cool.

Gameplay
I like the variety, gimmicks/mechanics change quite rapidly.
Platforms seem incredibly easy to just clip through.
The fact that some cycles reset on respawn and some don't is really weird, its not a problem per se as most cycles are short but something to consider. This seems to not always work either (triggering a platform and hitting R before it falls will have it gone next time)
Yea just want to reiterate this - the platform persistence through restart is really bad.
Momentum is preserved through save/restart, allowing savejumping. Not sure its relevant anywhere but something to consider.

Specific spots.
First save with the ghost gimmick feels very out of place. Its the longest save in the game so far and has many small issues. Feels like its made by a developer considering his own familiarity with a new mechanic rather than the player who has just touched it for the first time. Also the spikes at the end are extremely hard to see (and cannot be scouted earlier due to blocks), making it feel like a really cheap and uninteresting death.
Second save in sewer is also awkward, since you need to toggle the buttons but be in ghost form and requires a lot of unnecessary repetitive action on the players part each attempt. Its a short save so it seems like you acknowledged this.


Overall pretty fun and looks great but definitely some rough spots.