Downloaded this a few days ago and have not put it down for more than a few hours since. Absolutely addictive!
I think my only critiques would be on each “stage select” as it were ( dig, marathon, sprint, etc ) could you put that at the top of the screen above “Lines” ( or time for Ultra ) that way if I snap a photo of a new score, it’s easy to identify what I was playing.
I saw you left a comment recently about an option to limit the next piece preview, which is awesome! Or changing their size too, which would work for sure. My other suggestion is to maybe make an option for them to be in the same style as the shadow displayed in the playfield?
Same for the held piece, that is actually my biggest hurdle is I keep mistaking the held piece for the next up, but that is on me!
Regardless, this is by far and away the best block stacking game for the GBA, and a super close second for the Game Boy entirely, though that might be just because DX has more nostalgia for me.