Fun concept, I wish I could fast-forward at times (the timer is a bit slow), but otherwise nice! If you add more levels you could go for more timers to make the movements less predictable, more movement types (diagonals, jump over a cell, tiles with a maximum number of uses, etc.).
Whether you continue or not, that’s a good game, hope you had fun doing it; in any case I had a good time so thank you for that. ❤