We got that feedback a lot! If you check out the full steam release when we launch , you'll notice that we no longer reset the grid when you submit an incorrect solution!
Nice work! I did get suck on the "spud" shooter level, but what I played up to that point was nice. One camera control tip: I'd recommend having the camera move to follow the player just slightly before the player reaches the end of the screen, such that you can wee what you are moving towards.
I think it's a pretty interesting idea for a mechanic but, like some of the others below, it looks like there was some untapped potential. Still, nice work for 48 hours!