WonderBlocks

Go: Go birds go! *the birds start flying* Stop: Stop!!! *the train stops* Again: Again! can you guys do that again? but you guys switch? Go & Stop: Sure! *switches places) Go: Go train go! *the train starts moving again* Stop: Birds Stop!!! *the birds stops flying and lands on a safe land* Toad: Guys? can you help me on the train? it needs pushing. Push: Did somebody call me? Toad: I need the lever to be pushed. Push: I need somebody to start the coding and to stop the coding too.