Nice submission! I think you could make the things a bit more interesting if the cards are positioned on the fly according to the game progression. For example, it was pretty frustrating to just try to get the pair for the first card to start moving the player, when you could give that for free (whatever card the player picks, that's the right one).
Also the movement is ok to me but the size of the grid and/or the colliders it's a bit confusing (sometimes I had to try to see if I fit or not on some path).
In overall, it's a nice game, congrats!