The interactions between the different blocks and characters. it wasn't that bad but you could have included more intro levels to teach how everything interacts with each other. Of course I get that this was a game jam and you probably needed the time elsewhere.
Ok that makes a lot of sense, thanks! It definitely could've used a bit of clarity. For the blocks that you pass through if they aren't your color, the sprites were supposed to be placeholders so that might have added to it too. And I agree I probably could've introduced them in a better way too. Thanks again!