Is the play area ever going to get bigger or will it be locked to a 3x3 square?
I think it might not take long to run out of levels with nicely progressing difficulty in the latter case.
Yeah, I was thinking maybe expanding the latter levels to be on a 4x4 or 5x5 grid. I still haven't planned out that many levels, so I didn't know when I would need to expand the grid. Thanks for the feedback! :)