This is really, really good - took me a run to figure out the mechanics, but once I'd gotten to grips with everything it was so rewarding to play and strategise. Setting up my final run to use piggy to drop 11 gems onto blue then jump it with purple and get all 20 for the final challenge just felt fantastic :)
The range of upgrades is great, each with their own utility, and a lovely extra layer to consider with how many gems each will place on the board when picked.
Sound effects tie in really nicely and are well picked with plenty of character