Hello, we really appreciate that you provide such an in-depth review and also sharing your own levels. Glad you enjoy the game so much! I would like to give responses to your comments:
As you said, the written tutorial is kinda counterintuitive at the moment. We implement the codex page and control guidelines around 30mins before the deadline so I guess it is better than nothing lol. Also, tbh we quickly rushed the tutorial levels in order to "remedy" the missing proper tutorial.
As for the rock and other UX stuff, you are also right. Like the tick sign, it is originally a placeholder and supposedly it is an eye icon you can find in the infographic, we just don't have enough time to change it.
And regarding level1, you are right too. It was a careless mistake lol.
We would fix bugs and add other utilities and levels after the voting period if we have time ;).