I also have some suggestions
you could add some items that increase your stamina and it would be nice to have more boss fights, or different clothes per character to pick up while playing, or equipment like armor and helmets that give you more hp , or enter a gun sensitivity setting , or FOV/ZOOM settings to better see the sexual action ,and more content with the story ,and in boss fights you could make an easier mechanism to avoid attacks because it's quite hard to defeat them