I like the idea (and maybe even saw a few old games like this?) of the game, the theme fits well and the color palette is interesting and fitting at the same time. A few small issues do keep the game out of the 5 star realm for me, namely when stone generation creates them on second to last row (so basically they are useless) and I get more knight than my flames which makes certain levels insta restart unless you want to wait for the eternity that it takes them to move together. There is also an empty map bug where you get no knight and the game is softlocked. For the first I kinda wish we had the second button to make something to lure the knights into position just to give the player more agency around the random generation (maybe roar and they are more likely to move in that direction? idk)
Graphically the game looks lovely, I did spot some weird glitch with the character moving in 1 tall horizontal tunnels (seems to flicker between directional sprites maybe?) but it is nothing that hurts the gameplay experience.
While music and sound effects were neat, they were a bit more loud that they should be. Otherwise they were banging!
Overall a really cool idea implemented almost flawlessly. Well done!