If you enter the tentacle cave room as a bug girl, you get softlocked and unable to backtrack or proceed forward.
Edit: Press R to reset to the entrance of a room.
Game is decent fun, and scratches a specific fetish itch of mine. Thank you for your hard work.
Having said that, the current set of transformations and puzzle-solving wears out fast. Obviously, it's difficult to add more content like that, but I wouldn't recommend leaving many of the current areas the way they are. Any expansion on content should definitely prioritize a revision of exisiting areas to have some novel mechanics being introduced sooner, imo.