another Australian here full game isn't out yet still demo if you wanna keep up to date with the game easiest way would be checking the sunny day jack twitter account, also there's a wishlist on steam so my best guess is when the full game is out it'll pop up on steam but yeah nah still in demo form currently. From what i've seen they've been reworking the sprites of the characters, not sure what exactly what you mean by the seeing bits and pieces of some play throughs unless there's some patreon exclusive stuff i'm not aware of or maybe could just be a part of the demo you haven't seen. hope this helps