The new update Alpha 1.2 has added 9 new maps. They can only currently be accessed by using the "Next Level" button (But that will change in Alpha 1.2.1). Now if you run the game and there is a new update available, a pop-up will tell you, you can update. Map 2 of the first chapter glitched, and doesn't currently work, but you can still progress from it. This will hopefully be patched in the Alpha 1.2.1 update.