I love games that forces me to do two things at once, it scratches a part of my brain that makes me wants to try again and again until it just works. Well done it’s fun! I thought on mobile it was more difficult because you can’t have one hand doing left-right while you’re managing the grid, but it works.
Imho the two tiny things that could make it funnier (for me at least) would be 1 - a better feedback on a completed line/set when the board clears up, because it’s a strong win and it should feel super rewarding 2 - not punishing the player for getting too many pieces. Just replacing the last one, because the game teaches you “dodge rock, collect parts” then suddenly collecting parts is negative, which feels like a betrayal.
Very solid entry, wp <333