Reached the core loop: a chemical falling-block puzzle where you slot element pieces (my first was COO) into a grid and score for compounds. The drop-and-rotate feel is solid and the tutorial cards (Move, then Rotate) are clear and well-timed, I hit 1,500 in under a minute, which is a good early hit.
My real friction was the first thirty seconds, before the game. The Update History modal opens on top of TAP TO START and has to be dismissed first, with several lines still untranslated. A stray tap surfaced a RELEASE TEST "public build health check" overlay, and another landed on a Lab Notes / Achievements screen. For a first-time player the first impression is a debug surface, not a game. I would default the update history closed, keep diagnostics behind a settings menu, and let the first board appear with one tap.
Once I was in, I could not tell what counted as a valid compound or how the score was computed; a one-line hint when I first scored would teach the objective faster than the achievements list. Would play again.