I will say, the game does a good job of ramping the player into the larger puzzles, but puzzle 12 "raspberries" was quite intimidating. I know that this game was made for a jam and it still needs a bit of balancing work. My suggestion would be to have a few more smaller puzzles to introduce the multi colour mechanic.
Hi Foxy, thank you for playing! I definitely agree, think I focused to much on systems and not enough on puzzle design. I might update this after the jam to add a few more 5x5 coloured to ease that transition (and see if I can update raspberries without breaking current save files), but thank you so much for the feedback!