Glad you liked the idea! While you are correct that you can just wait to stay under the pipe to fill the blocks, I didn't wanna limit the boxes so the player doesn't get stuck, I think maybe a check with how many you have or as you said, a maximum box capacity. Also yeah, sometimes the collisions are wonky, but I hope not too much that takes away from the experience, I am still pretty new to GDevelop. Thanks a lot for the feedback