it's not very fun to implement in PuzzleScript, but it had to be done... The 'conveyor belt' of crystals on the left now animates semi-smoothly, movement that was really necessary to convey the concept of them actually moving to the next position.

fun fact: 35 new sprites, 25 new rules, lots of head scratching

Adding more tweening (for player cursor, crystals growing) is possible, but considering this took me almost 3 hours to implement I might not go down that rabbit hole.