The most fun I had in the jam so far!
As other have said the mix between precision and grid based is interesting, the only downside I saw was the jumping platform which had a jump that felt too static instead of reacting to my velocity.
Have you played the game Ynglet by any chance?
The gameplay is very similar to your game but your tile based movement offers enough difference to be its own thing and I think it's a solid base on which you could build a full game!