I didn't understand how to exit the first location ;)
UPD: I looked up how to walk through doors from the commentator and completed the game.
It's a creative idea with 3 states that the level actively uses. It's a well-designed puzzle with clear objectives, increasing difficulty, and different approaches. I particularly enjoyed the flower in the location where you need to approach from the opposite side, which led me to search for a new location in that direction. Of course, it has a cute design and a cheerful ghost. However, I was confused by the colors of the normal state, which is green-blue, and the water state, which is purple. It's like swapping them. And for such a cute game, you need music in the backgroud, because there's Audio in the criteria. Good luck!