bold idea to use a sideways orientation. it's great for the playfield but hurts my hands - i used pd mirror and remapped a controller to alleviate that, though i still had to play with the playdate's screen to avoid visual lag with the mirror version.
the block graphics are hard to read quickly: circle and diamond and square all look way too much like each other. please consider an alternative set of block graphics, either with more "colour" like filling the insides or outsides of some of the shapes with black or dither, or using more visually distinct shapes (the cross is a good starting point).
the physics are different from my favourite panepon variants (playdapon is very eager to allow swaps and register matches but very stingy with awarding chains) but allowing raising while matching makes up for a lot of that. overall between this and the graphics, it's tough to make nice big chains, but the game moves briskly enough to be engaging nonetheless