Wow! Such a fun mechanic. Loved the retro 1920's art style and the music. The AI navmesh was a bit weird sometimes, but it was pretty convincing. The level design was pretty good too. Liked the idea with the vents, where you can recover and hide. My only issue was the complete invisibility for the player when becoming smoke. You could have made the player half transparent or a literally smoke sprite to be able to see where I'm going. Other than that, awesome!