The door has a delay of 0.8 seconds to close it, its a problem I will fix on future updates, but it is for making it NOT just spameable (A recommendation is to click it when the eyes appear on it)
It may be a lot to ask since the game's art is VERY good, but here's what: Something I noticed is that, when the girl already has her belly at the maximum size, the movement of the "A" is still the sprite of its small size, I don't know if it is a small code error or something like that