Thanks Vykri! This game was heavily inspired by Zachtronics so I'm glad it gives the right feel. You're probably right about the names, I agree that push doesn't fit very well. The idea for this game came from a visualisation showing how the different list operations in Python work using shapes, so I didn't give much thought to the names and just copied the visualisation. I'm looking to release an updated version sometime next month so I'd love to hear any other feedback you have.