In the previous version, we had on instruction scene that ideally teach SPACE to start. A lot of people get the idea of use SPACE to transform, but only some of them figure out they can transform multiple times. During our playtests, we found out that some of our players tried to succeed on the first SPACE transform to floating. Our intent is that players don't just press SPACE once but toggle back and forth as needed to solve the puzzle.
We decided to add some very gentle levels that are easy to start. We canceled the instruction scene, instead we create a new level 1 as our tutorial.