Truly didn't know what to do at the start. Once I messed with a bunch of stuff and misclicked, I realized I missed something. A way to go back and forth on the initial password dial would be great.
Movement is a little floaty but -- honestly -- the puzzles were satisfying. I don't like sliding hole puzzles with tubes all that much. The ball puzzle was bordering on frustrating until I understand the actual mechanics, so maybe portraying that the balls are sliding would serve best.
Had a good time, didn't take long! I think soundfx would make everything much more satisfying.